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Finding the Fourth Proportional to 396,379.88, 546,848.52 and 226,522.88

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Solution

The fourth proportional to 396,379.88, 546,848.52 and 226,522.88 is: 312,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,379.88 : 546,848.52 = 226,522.88 : x
  2. Step 2: Convert to fraction form
    396,379.88/546,848.52 = 226,522.88/x
  3. Step 3: Cross multiply
    396,379.88x = 546,848.52 × 226,522.88
  4. Step 4: Simplify right side
    396,379.88x = 123,873,701,674.14
  5. Step 5: Solve for x
    x = 123,873,701,674.14/396,379.88
  6. Step 6: Final answer
    x = 312,512.59

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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.