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Finding the Fourth Proportional to 392,443.38, 541,575.55 and 222,664.14

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Solution

The fourth proportional to 392,443.38, 541,575.55 and 222,664.14 is: 307,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,443.38 : 541,575.55 = 222,664.14 : x
  2. Step 2: Convert to fraction form
    392,443.38/541,575.55 = 222,664.14/x
  3. Step 3: Cross multiply
    392,443.38x = 541,575.55 × 222,664.14
  4. Step 4: Simplify right side
    392,443.38x = 120,589,451,377.90
  5. Step 5: Solve for x
    x = 120,589,451,377.90/392,443.38
  6. Step 6: Final answer
    x = 307,278.60

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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.