Home / 516,387.47-712,613.30-286,943.85

Finding the Fourth Proportional to 516,387.47, 712,613.30 and 286,943.85

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Solution

The fourth proportional to 516,387.47, 712,613.30 and 286,943.85 is: 395,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,387.47 : 712,613.30 = 286,943.85 : x
  2. Step 2: Convert to fraction form
    516,387.47/712,613.30 = 286,943.85/x
  3. Step 3: Cross multiply
    516,387.47x = 712,613.30 × 286,943.85
  4. Step 4: Simplify right side
    516,387.47x = 204,480,002,428.49
  5. Step 5: Solve for x
    x = 204,480,002,428.49/516,387.47
  6. Step 6: Final answer
    x = 395,981.73

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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.