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Finding the Fourth Proportional to 396,801.71, 547,501.16 and 235,711.07

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Solution

The fourth proportional to 396,801.71, 547,501.16 and 235,711.07 is: 325,230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,801.71 : 547,501.16 = 235,711.07 : x
  2. Step 2: Convert to fraction form
    396,801.71/547,501.16 = 235,711.07/x
  3. Step 3: Cross multiply
    396,801.71x = 547,501.16 × 235,711.07
  4. Step 4: Simplify right side
    396,801.71x = 129,052,082,101.61
  5. Step 5: Solve for x
    x = 129,052,082,101.61/396,801.71
  6. Step 6: Final answer
    x = 325,230.66

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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.