Home / 394,631.80-591,990.90-382,190.20

Finding the Fourth Proportional to 394,631.80, 591,990.90 and 382,190.20

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Solution

The fourth proportional to 394,631.80, 591,990.90 and 382,190.20 is: 573,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,631.80 : 591,990.90 = 382,190.20 : x
  2. Step 2: Convert to fraction form
    394,631.80/591,990.90 = 382,190.20/x
  3. Step 3: Cross multiply
    394,631.80x = 591,990.90 × 382,190.20
  4. Step 4: Simplify right side
    394,631.80x = 226,253,120,469.18
  5. Step 5: Solve for x
    x = 226,253,120,469.18/394,631.80
  6. Step 6: Final answer
    x = 573,327.14

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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.