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Finding the Fourth Proportional to 396,314.13, 594,346.31 and 130,012.59

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Solution

The fourth proportional to 396,314.13, 594,346.31 and 130,012.59 is: 194,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,314.13 : 594,346.31 = 130,012.59 : x
  2. Step 2: Convert to fraction form
    396,314.13/594,346.31 = 130,012.59/x
  3. Step 3: Cross multiply
    396,314.13x = 594,346.31 × 130,012.59
  4. Step 4: Simplify right side
    396,314.13x = 77,272,503,120.04
  5. Step 5: Solve for x
    x = 77,272,503,120.04/396,314.13
  6. Step 6: Final answer
    x = 194,977.92

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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.