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Finding the Fourth Proportional to 394,414.38, 544,360.23 and 381,292.38

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Solution

The fourth proportional to 394,414.38, 544,360.23 and 381,292.38 is: 526,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,414.38 : 544,360.23 = 381,292.38 : x
  2. Step 2: Convert to fraction form
    394,414.38/544,360.23 = 381,292.38/x
  3. Step 3: Cross multiply
    394,414.38x = 544,360.23 × 381,292.38
  4. Step 4: Simplify right side
    394,414.38x = 207,560,407,674.05
  5. Step 5: Solve for x
    x = 207,560,407,674.05/394,414.38
  6. Step 6: Final answer
    x = 526,249.59

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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.