Home / 394,520.20-591,780.30-331,534.60

Finding the Fourth Proportional to 394,520.20, 591,780.30 and 331,534.60

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Solution

The fourth proportional to 394,520.20, 591,780.30 and 331,534.60 is: 497,301.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,520.20 : 591,780.30 = 331,534.60 : x
  2. Step 2: Convert to fraction form
    394,520.20/591,780.30 = 331,534.60/x
  3. Step 3: Cross multiply
    394,520.20x = 591,780.30 × 331,534.60
  4. Step 4: Simplify right side
    394,520.20x = 196,195,645,048.38
  5. Step 5: Solve for x
    x = 196,195,645,048.38/394,520.20
  6. Step 6: Final answer
    x = 497,301.90

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1.5x scale

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.