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Finding the Fourth Proportional to 624,371.70, 861,635.15 and 337,891.71

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Solution

The fourth proportional to 624,371.70, 861,635.15 and 337,891.71 is: 466,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,371.70 : 861,635.15 = 337,891.71 : x
  2. Step 2: Convert to fraction form
    624,371.70/861,635.15 = 337,891.71/x
  3. Step 3: Cross multiply
    624,371.70x = 861,635.15 × 337,891.71
  4. Step 4: Simplify right side
    624,371.70x = 291,139,374,229.61
  5. Step 5: Solve for x
    x = 291,139,374,229.61/624,371.70
  6. Step 6: Final answer
    x = 466,291.75

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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.