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Finding the Fourth Proportional to 396,676.29, 547,336.30 and 235,581.87

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Solution

The fourth proportional to 396,676.29, 547,336.30 and 235,581.87 is: 325,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,676.29 : 547,336.30 = 235,581.87 : x
  2. Step 2: Convert to fraction form
    396,676.29/547,336.30 = 235,581.87/x
  3. Step 3: Cross multiply
    396,676.29x = 547,336.30 × 235,581.87
  4. Step 4: Simplify right side
    396,676.29x = 128,942,509,072.88
  5. Step 5: Solve for x
    x = 128,942,509,072.88/396,676.29
  6. Step 6: Final answer
    x = 325,057.26

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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.