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Finding the Fourth Proportional to 425,691.68, 587,458.48 and 234,711.86

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Solution

The fourth proportional to 425,691.68, 587,458.48 and 234,711.86 is: 323,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,691.68 : 587,458.48 = 234,711.86 : x
  2. Step 2: Convert to fraction form
    425,691.68/587,458.48 = 234,711.86/x
  3. Step 3: Cross multiply
    425,691.68x = 587,458.48 × 234,711.86
  4. Step 4: Simplify right side
    425,691.68x = 137,883,472,513.57
  5. Step 5: Solve for x
    x = 137,883,472,513.57/425,691.68
  6. Step 6: Final answer
    x = 323,904.55

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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.