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Finding the Fourth Proportional to 408,551.20, 563,799.12 and 238,751.68

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Solution

The fourth proportional to 408,551.20, 563,799.12 and 238,751.68 is: 329,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,551.20 : 563,799.12 = 238,751.68 : x
  2. Step 2: Convert to fraction form
    408,551.20/563,799.12 = 238,751.68/x
  3. Step 3: Cross multiply
    408,551.20x = 563,799.12 × 238,751.68
  4. Step 4: Simplify right side
    408,551.20x = 134,607,987,082.52
  5. Step 5: Solve for x
    x = 134,607,987,082.52/408,551.20
  6. Step 6: Final answer
    x = 329,476.42

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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.