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Finding the Fourth Proportional to 396,248.98, 546,412.48 and 339,077.49

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Solution

The fourth proportional to 396,248.98, 546,412.48 and 339,077.49 is: 467,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,248.98 : 546,412.48 = 339,077.49 : x
  2. Step 2: Convert to fraction form
    396,248.98/546,412.48 = 339,077.49/x
  3. Step 3: Cross multiply
    396,248.98x = 546,412.48 × 339,077.49
  4. Step 4: Simplify right side
    396,248.98x = 185,276,172,223.08
  5. Step 5: Solve for x
    x = 185,276,172,223.08/396,248.98
  6. Step 6: Final answer
    x = 467,575.14

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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.