Home / 516,337.08-712,542.88-286,931.72

Finding the Fourth Proportional to 516,337.08, 712,542.88 and 286,931.72

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Solution

The fourth proportional to 516,337.08, 712,542.88 and 286,931.72 is: 395,964.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,337.08 : 712,542.88 = 286,931.72 : x
  2. Step 2: Convert to fraction form
    516,337.08/712,542.88 = 286,931.72/x
  3. Step 3: Cross multiply
    516,337.08x = 712,542.88 × 286,931.72
  4. Step 4: Simplify right side
    516,337.08x = 204,451,154,132.15
  5. Step 5: Solve for x
    x = 204,451,154,132.15/516,337.08
  6. Step 6: Final answer
    x = 395,964.50

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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.