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Finding the Fourth Proportional to 396,869.88, 547,760.14 and 235,693.78

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Solution

The fourth proportional to 396,869.88, 547,760.14 and 235,693.78 is: 325,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,869.88 : 547,760.14 = 235,693.78 : x
  2. Step 2: Convert to fraction form
    396,869.88/547,760.14 = 235,693.78/x
  3. Step 3: Cross multiply
    396,869.88x = 547,760.14 × 235,693.78
  4. Step 4: Simplify right side
    396,869.88x = 129,103,659,052.45
  5. Step 5: Solve for x
    x = 129,103,659,052.45/396,869.88
  6. Step 6: Final answer
    x = 325,304.76

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1.5x scale

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.