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Finding the Fourth Proportional to 419,044.92, 628,588.14 and 119,569.61

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Solution

The fourth proportional to 419,044.92, 628,588.14 and 119,569.61 is: 179,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,044.92 : 628,588.14 = 119,569.61 : x
  2. Step 2: Convert to fraction form
    419,044.92/628,588.14 = 119,569.61/x
  3. Step 3: Cross multiply
    419,044.92x = 628,588.14 × 119,569.61
  4. Step 4: Simplify right side
    419,044.92x = 75,160,039,641.72
  5. Step 5: Solve for x
    x = 75,160,039,641.72/419,044.92
  6. Step 6: Final answer
    x = 179,360.34

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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.