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Finding the Fourth Proportional to 624,363.75, 861,624.09 and 337,883.76

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Solution

The fourth proportional to 624,363.75, 861,624.09 and 337,883.76 is: 466,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,363.75 : 861,624.09 = 337,883.76 : x
  2. Step 2: Convert to fraction form
    624,363.75/861,624.09 = 337,883.76/x
  3. Step 3: Cross multiply
    624,363.75x = 861,624.09 × 337,883.76
  4. Step 4: Simplify right side
    624,363.75x = 291,128,787,235.78
  5. Step 5: Solve for x
    x = 291,128,787,235.78/624,363.75
  6. Step 6: Final answer
    x = 466,280.73

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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.