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Finding the Fourth Proportional to 394,645.94, 544,793.58 and 231,279.88

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Solution

The fourth proportional to 394,645.94, 544,793.58 and 231,279.88 is: 319,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,645.94 : 544,793.58 = 231,279.88 : x
  2. Step 2: Convert to fraction form
    394,645.94/544,793.58 = 231,279.88/x
  3. Step 3: Cross multiply
    394,645.94x = 544,793.58 × 231,279.88
  4. Step 4: Simplify right side
    394,645.94x = 125,999,793,807.17
  5. Step 5: Solve for x
    x = 125,999,793,807.17/394,645.94
  6. Step 6: Final answer
    x = 319,273.00

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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.