Home / 394,230.60-591,432.30-127,945.80

Finding the Fourth Proportional to 394,230.60, 591,432.30 and 127,945.80

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Solution

The fourth proportional to 394,230.60, 591,432.30 and 127,945.80 is: 191,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,230.60 : 591,432.30 = 127,945.80 : x
  2. Step 2: Convert to fraction form
    394,230.60/591,432.30 = 127,945.80/x
  3. Step 3: Cross multiply
    394,230.60x = 591,432.30 × 127,945.80
  4. Step 4: Simplify right side
    394,230.60x = 75,671,278,769.34
  5. Step 5: Solve for x
    x = 75,671,278,769.34/394,230.60
  6. Step 6: Final answer
    x = 191,946.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.