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Finding the Fourth Proportional to 437,772.71, 654,657.96 and 318,231.29

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Solution

The fourth proportional to 437,772.71, 654,657.96 and 318,231.29 is: 475,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,772.71 : 654,657.96 = 318,231.29 : x
  2. Step 2: Convert to fraction form
    437,772.71/654,657.96 = 318,231.29/x
  3. Step 3: Cross multiply
    437,772.71x = 654,657.96 × 318,231.29
  4. Step 4: Simplify right side
    437,772.71x = 208,332,647,119.57
  5. Step 5: Solve for x
    x = 208,332,647,119.57/437,772.71
  6. Step 6: Final answer
    x = 475,892.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.