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Finding the Fourth Proportional to 396,725.01, 547,854.17 and 276,195.87

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Solution

The fourth proportional to 396,725.01, 547,854.17 and 276,195.87 is: 381,410.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,725.01 : 547,854.17 = 276,195.87 : x
  2. Step 2: Convert to fraction form
    396,725.01/547,854.17 = 276,195.87/x
  3. Step 3: Cross multiply
    396,725.01x = 547,854.17 × 276,195.87
  4. Step 4: Simplify right side
    396,725.01x = 151,315,059,116.28
  5. Step 5: Solve for x
    x = 151,315,059,116.28/396,725.01
  6. Step 6: Final answer
    x = 381,410.44

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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.