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Finding the Fourth Proportional to 444,899.39, 667,462.84 and 129,356.30

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Solution

The fourth proportional to 444,899.39, 667,462.84 and 129,356.30 is: 194,067.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,899.39 : 667,462.84 = 129,356.30 : x
  2. Step 2: Convert to fraction form
    444,899.39/667,462.84 = 129,356.30/x
  3. Step 3: Cross multiply
    444,899.39x = 667,462.84 × 129,356.30
  4. Step 4: Simplify right side
    444,899.39x = 86,340,523,369.89
  5. Step 5: Solve for x
    x = 86,340,523,369.89/444,899.39
  6. Step 6: Final answer
    x = 194,067.52

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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.