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Finding the Fourth Proportional to 392,306.91, 541,367.60 and 222,537.39

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Solution

The fourth proportional to 392,306.91, 541,367.60 and 222,537.39 is: 307,092.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,306.91 : 541,367.60 = 222,537.39 : x
  2. Step 2: Convert to fraction form
    392,306.91/541,367.60 = 222,537.39/x
  3. Step 3: Cross multiply
    392,306.91x = 541,367.60 × 222,537.39
  4. Step 4: Simplify right side
    392,306.91x = 120,474,531,621.88
  5. Step 5: Solve for x
    x = 120,474,531,621.88/392,306.91
  6. Step 6: Final answer
    x = 307,092.56

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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.