Home / 436,221.20-654,331.80-394,230.80

Finding the Fourth Proportional to 436,221.20, 654,331.80 and 394,230.80

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Solution

The fourth proportional to 436,221.20, 654,331.80 and 394,230.80 is: 591,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,221.20 : 654,331.80 = 394,230.80 : x
  2. Step 2: Convert to fraction form
    436,221.20/654,331.80 = 394,230.80/x
  3. Step 3: Cross multiply
    436,221.20x = 654,331.80 × 394,230.80
  4. Step 4: Simplify right side
    436,221.20x = 257,957,748,979.44
  5. Step 5: Solve for x
    x = 257,957,748,979.44/436,221.20
  6. Step 6: Final answer
    x = 591,346.20

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Similar ratio
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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.