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Finding the Fourth Proportional to 416,811.48, 625,217.22 and 276,843.48

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Solution

The fourth proportional to 416,811.48, 625,217.22 and 276,843.48 is: 415,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,811.48 : 625,217.22 = 276,843.48 : x
  2. Step 2: Convert to fraction form
    416,811.48/625,217.22 = 276,843.48/x
  3. Step 3: Cross multiply
    416,811.48x = 625,217.22 × 276,843.48
  4. Step 4: Simplify right side
    416,811.48x = 173,087,310,940.73
  5. Step 5: Solve for x
    x = 173,087,310,940.73/416,811.48
  6. Step 6: Final answer
    x = 415,265.22

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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.