Home / 859,711.86-1,186,347.96-477,715.86

Finding the Fourth Proportional to 859,711.86, 1,186,347.96 and 477,715.86

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Solution

The fourth proportional to 859,711.86, 1,186,347.96 and 477,715.86 is: 659,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,711.86 : 1,186,347.96 = 477,715.86 : x
  2. Step 2: Convert to fraction form
    859,711.86/1,186,347.96 = 477,715.86/x
  3. Step 3: Cross multiply
    859,711.86x = 1,186,347.96 × 477,715.86
  4. Step 4: Simplify right side
    859,711.86x = 566,737,235,970.65
  5. Step 5: Solve for x
    x = 566,737,235,970.65/859,711.86
  6. Step 6: Final answer
    x = 659,217.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.