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Finding the Fourth Proportional to 425,689.92, 587,456.06 and 234,710.10

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Solution

The fourth proportional to 425,689.92, 587,456.06 and 234,710.10 is: 323,902.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,689.92 : 587,456.06 = 234,710.10 : x
  2. Step 2: Convert to fraction form
    425,689.92/587,456.06 = 234,710.10/x
  3. Step 3: Cross multiply
    425,689.92x = 587,456.06 × 234,710.10
  4. Step 4: Simplify right side
    425,689.92x = 137,881,869,414.66
  5. Step 5: Solve for x
    x = 137,881,869,414.66/425,689.92
  6. Step 6: Final answer
    x = 323,902.12

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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.