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Finding the Fourth Proportional to 396,822.52, 547,794.12 and 253,775.44

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Solution

The fourth proportional to 396,822.52, 547,794.12 and 253,775.44 is: 350,324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,822.52 : 547,794.12 = 253,775.44 : x
  2. Step 2: Convert to fraction form
    396,822.52/547,794.12 = 253,775.44/x
  3. Step 3: Cross multiply
    396,822.52x = 547,794.12 × 253,775.44
  4. Step 4: Simplify right side
    396,822.52x = 139,016,693,832.41
  5. Step 5: Solve for x
    x = 139,016,693,832.41/396,822.52
  6. Step 6: Final answer
    x = 350,324.61

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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.