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Finding the Fourth Proportional to 322,418.22, 444,468.19 and 225,320.61

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Solution

The fourth proportional to 322,418.22, 444,468.19 and 225,320.61 is: 310,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,418.22 : 444,468.19 = 225,320.61 : x
  2. Step 2: Convert to fraction form
    322,418.22/444,468.19 = 225,320.61/x
  3. Step 3: Cross multiply
    322,418.22x = 444,468.19 × 225,320.61
  4. Step 4: Simplify right side
    322,418.22x = 100,147,843,338.55
  5. Step 5: Solve for x
    x = 100,147,843,338.55/322,418.22
  6. Step 6: Final answer
    x = 310,614.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.