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Finding the Fourth Proportional to 394,903.08, 544,793.14 and 231,476.74

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Solution

The fourth proportional to 394,903.08, 544,793.14 and 231,476.74 is: 319,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,903.08 : 544,793.14 = 231,476.74 : x
  2. Step 2: Convert to fraction form
    394,903.08/544,793.14 = 231,476.74/x
  3. Step 3: Cross multiply
    394,903.08x = 544,793.14 × 231,476.74
  4. Step 4: Simplify right side
    394,903.08x = 126,106,938,948.93
  5. Step 5: Solve for x
    x = 126,106,938,948.93/394,903.08
  6. Step 6: Final answer
    x = 319,336.43

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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.