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Finding the Fourth Proportional to 394,388.76, 544,060.60 and 233,165.28

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Solution

The fourth proportional to 394,388.76, 544,060.60 and 233,165.28 is: 321,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,388.76 : 544,060.60 = 233,165.28 : x
  2. Step 2: Convert to fraction form
    394,388.76/544,060.60 = 233,165.28/x
  3. Step 3: Cross multiply
    394,388.76x = 544,060.60 × 233,165.28
  4. Step 4: Simplify right side
    394,388.76x = 126,856,042,135.97
  5. Step 5: Solve for x
    x = 126,856,042,135.97/394,388.76
  6. Step 6: Final answer
    x = 321,652.28

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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.