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Finding the Fourth Proportional to 396,676.80, 547,337.00 and 235,582.38

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Solution

The fourth proportional to 396,676.80, 547,337.00 and 235,582.38 is: 325,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,676.80 : 547,337.00 = 235,582.38 : x
  2. Step 2: Convert to fraction form
    396,676.80/547,337.00 = 235,582.38/x
  3. Step 3: Cross multiply
    396,676.80x = 547,337.00 × 235,582.38
  4. Step 4: Simplify right side
    396,676.80x = 128,942,951,944.15
  5. Step 5: Solve for x
    x = 128,942,951,944.15/396,676.80
  6. Step 6: Final answer
    x = 325,057.96

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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.