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Finding the Fourth Proportional to 396,732.48, 547,250.40 and 235,481.28

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Solution

The fourth proportional to 396,732.48, 547,250.40 and 235,481.28 is: 324,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,732.48 : 547,250.40 = 235,481.28 : x
  2. Step 2: Convert to fraction form
    396,732.48/547,250.40 = 235,481.28/x
  3. Step 3: Cross multiply
    396,732.48x = 547,250.40 × 235,481.28
  4. Step 4: Simplify right side
    396,732.48x = 128,867,224,672.51
  5. Step 5: Solve for x
    x = 128,867,224,672.51/396,732.48
  6. Step 6: Final answer
    x = 324,821.46

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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.