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Finding the Fourth Proportional to 331,871.92, 497,107.95 and 225,321.28

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Solution

The fourth proportional to 331,871.92, 497,107.95 and 225,321.28 is: 337,506.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,871.92 : 497,107.95 = 225,321.28 : x
  2. Step 2: Convert to fraction form
    331,871.92/497,107.95 = 225,321.28/x
  3. Step 3: Cross multiply
    331,871.92x = 497,107.95 × 225,321.28
  4. Step 4: Simplify right side
    331,871.92x = 112,008,999,592.18
  5. Step 5: Solve for x
    x = 112,008,999,592.18/331,871.92
  6. Step 6: Final answer
    x = 337,506.71

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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.