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Finding the Fourth Proportional to 392,144.09, 541,326.31 and 332,028.92

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Solution

The fourth proportional to 392,144.09, 541,326.31 and 332,028.92 is: 458,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,144.09 : 541,326.31 = 332,028.92 : x
  2. Step 2: Convert to fraction form
    392,144.09/541,326.31 = 332,028.92/x
  3. Step 3: Cross multiply
    392,144.09x = 541,326.31 × 332,028.92
  4. Step 4: Simplify right side
    392,144.09x = 179,735,990,600.13
  5. Step 5: Solve for x
    x = 179,735,990,600.13/392,144.09
  6. Step 6: Final answer
    x = 458,341.71

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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.