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Finding the Fourth Proportional to 396,761.37, 547,698.24 and 267,874.44

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Solution

The fourth proportional to 396,761.37, 547,698.24 and 267,874.44 is: 369,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,761.37 : 547,698.24 = 267,874.44 : x
  2. Step 2: Convert to fraction form
    396,761.37/547,698.24 = 267,874.44/x
  3. Step 3: Cross multiply
    396,761.37x = 547,698.24 × 267,874.44
  4. Step 4: Simplify right side
    396,761.37x = 146,714,359,328.99
  5. Step 5: Solve for x
    x = 146,714,359,328.99/396,761.37
  6. Step 6: Final answer
    x = 369,779.85

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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.