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Finding the Fourth Proportional to 472,810.68, 652,452.15 and 268,911.20

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Solution

The fourth proportional to 472,810.68, 652,452.15 and 268,911.20 is: 371,082.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,810.68 : 652,452.15 = 268,911.20 : x
  2. Step 2: Convert to fraction form
    472,810.68/652,452.15 = 268,911.20/x
  3. Step 3: Cross multiply
    472,810.68x = 652,452.15 × 268,911.20
  4. Step 4: Simplify right side
    472,810.68x = 175,451,691,726.00
  5. Step 5: Solve for x
    x = 175,451,691,726.00/472,810.68
  6. Step 6: Final answer
    x = 371,082.34

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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.