---
product_id: 59066232
title: "Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three"
price: "€ 59.90"
currency: EUR
in_stock: true
url: https://www.desertcart.be/products/59066232-proportional-formulae-bi-complex-and-tri-complex-or-a-system
store_origin: BE
region: Belgium
---

# Enhanced Calculations Algebraic Precision Complex Relationships Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three

**Price:** € 59.90
**Availability:** ✅ In Stock

## Summary

> 📐 Master Proportions, Conquer Calculations!

## Quick Answers

- **What is this?** Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three
- **How much does it cost?** € 59.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/59066232-proportional-formulae-bi-complex-and-tri-complex-or-a-system)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Join the Elite Thinkers:** Be part of a community that values precision and clarity in arithmetic.
- • **Unlock Algebraic Mastery:** Transform your understanding of proportions with cutting-edge formulas.
- • **Future-Proof Your Knowledge:** Stay ahead in your field with advanced mathematical techniques.
- • **Streamlined Problem Solving:** Facilitate complex calculations effortlessly with our bi-complex and tri-complex systems.
- • **Elevate Your Analytical Skills:** Perfect for professionals seeking to enhance their mathematical toolkit.

## Overview

The Proportional Formulae Bi-Complex and Tri-Complex is an advanced mathematical system designed to simplify and enhance the understanding of proportional relationships. This innovative approach provides professionals with the tools needed to tackle complex arithmetic challenges, making it an essential addition to any analytical toolkit.

## Description

Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three [Lee, John] on desertcart.com. *FREE* shipping on qualifying offers. Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Dimensions  | 6.14 x 0.25 x 9.21 inches |
| ISBN-10  | 135928673X |
| ISBN-13  | 978-1359286734 |
| Item Weight  | 7.7 ounces |
| Language  | English |
| Print length  | 26 pages |
| Publication date  | May 24, 2016 |
| Publisher  | Palala Press |

## Images

![Proportional Formulae, Bi-Complex and Tri-Complex, Or a System, Algebraically Derived From the Nature of Proportionals, for the Facilitation of That ... Arithmetic Commonly Called the Rule of Three - Image 1](https://m.media-amazon.com/images/I/617F9yWYxVL.jpg)

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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-21*