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Finding the Fourth Proportional to 444,897.65, 667,460.22 and 129,354.55

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Solution

The fourth proportional to 444,897.65, 667,460.22 and 129,354.55 is: 194,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,897.65 : 667,460.22 = 129,354.55 : x
  2. Step 2: Convert to fraction form
    444,897.65/667,460.22 = 129,354.55/x
  3. Step 3: Cross multiply
    444,897.65x = 667,460.22 × 129,354.55
  4. Step 4: Simplify right side
    444,897.65x = 86,339,016,401.00
  5. Step 5: Solve for x
    x = 86,339,016,401.00/444,897.65
  6. Step 6: Final answer
    x = 194,064.90

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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.