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Finding the Fourth Proportional to 391,992.43, 541,181.45 and 246,922.57

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Solution

The fourth proportional to 391,992.43, 541,181.45 and 246,922.57 is: 340,899.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,992.43 : 541,181.45 = 246,922.57 : x
  2. Step 2: Convert to fraction form
    391,992.43/541,181.45 = 246,922.57/x
  3. Step 3: Cross multiply
    391,992.43x = 541,181.45 × 246,922.57
  4. Step 4: Simplify right side
    391,992.43x = 133,629,914,470.33
  5. Step 5: Solve for x
    x = 133,629,914,470.33/391,992.43
  6. Step 6: Final answer
    x = 340,899.22

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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.