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Finding the Fourth Proportional to 396,607.10, 594,687.09 and 130,296.11

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Solution

The fourth proportional to 396,607.10, 594,687.09 and 130,296.11 is: 195,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,607.10 : 594,687.09 = 130,296.11 : x
  2. Step 2: Convert to fraction form
    396,607.10/594,687.09 = 130,296.11/x
  3. Step 3: Cross multiply
    396,607.10x = 594,687.09 × 130,296.11
  4. Step 4: Simplify right side
    396,607.10x = 77,485,414,494.22
  5. Step 5: Solve for x
    x = 77,485,414,494.22/396,607.10
  6. Step 6: Final answer
    x = 195,370.72

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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.