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Finding the Fourth Proportional to 396,372.88, 546,838.86 and 226,515.88

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Solution

The fourth proportional to 396,372.88, 546,838.86 and 226,515.88 is: 312,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,372.88 : 546,838.86 = 226,515.88 : x
  2. Step 2: Convert to fraction form
    396,372.88/546,838.86 = 226,515.88/x
  3. Step 3: Cross multiply
    396,372.88x = 546,838.86 × 226,515.88
  4. Step 4: Simplify right side
    396,372.88x = 123,867,685,591.10
  5. Step 5: Solve for x
    x = 123,867,685,591.10/396,372.88
  6. Step 6: Final answer
    x = 312,502.93

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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.