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Finding the Fourth Proportional to 396,343.98, 594,577.92 and 130,043.92

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Solution

The fourth proportional to 396,343.98, 594,577.92 and 130,043.92 is: 195,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,343.98 : 594,577.92 = 130,043.92 : x
  2. Step 2: Convert to fraction form
    396,343.98/594,577.92 = 130,043.92/x
  3. Step 3: Cross multiply
    396,343.98x = 594,577.92 × 130,043.92
  4. Step 4: Simplify right side
    396,343.98x = 77,321,243,462.25
  5. Step 5: Solve for x
    x = 77,321,243,462.25/396,343.98
  6. Step 6: Final answer
    x = 195,086.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.