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Finding the Fourth Proportional to 444,898.39, 667,461.34 and 129,355.30

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Solution

The fourth proportional to 444,898.39, 667,461.34 and 129,355.30 is: 194,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,898.39 : 667,461.34 = 129,355.30 : x
  2. Step 2: Convert to fraction form
    444,898.39/667,461.34 = 129,355.30/x
  3. Step 3: Cross multiply
    444,898.39x = 667,461.34 × 129,355.30
  4. Step 4: Simplify right side
    444,898.39x = 86,339,661,874.10
  5. Step 5: Solve for x
    x = 86,339,661,874.10/444,898.39
  6. Step 6: Final answer
    x = 194,066.02

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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.