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Finding the Fourth Proportional to 418,982.27, 628,479.26 and 119,462.97

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Solution

The fourth proportional to 418,982.27, 628,479.26 and 119,462.97 is: 179,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,982.27 : 628,479.26 = 119,462.97 : x
  2. Step 2: Convert to fraction form
    418,982.27/628,479.26 = 119,462.97/x
  3. Step 3: Cross multiply
    418,982.27x = 628,479.26 × 119,462.97
  4. Step 4: Simplify right side
    418,982.27x = 75,079,998,983.00
  5. Step 5: Solve for x
    x = 75,079,998,983.00/418,982.27
  6. Step 6: Final answer
    x = 179,196.12

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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.