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Finding the Fourth Proportional to 362,229.80, 543,344.70 and 220,512.20

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Solution

The fourth proportional to 362,229.80, 543,344.70 and 220,512.20 is: 330,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,229.80 : 543,344.70 = 220,512.20 : x
  2. Step 2: Convert to fraction form
    362,229.80/543,344.70 = 220,512.20/x
  3. Step 3: Cross multiply
    362,229.80x = 543,344.70 × 220,512.20
  4. Step 4: Simplify right side
    362,229.80x = 119,814,135,155.34
  5. Step 5: Solve for x
    x = 119,814,135,155.34/362,229.80
  6. Step 6: Final answer
    x = 330,768.30

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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.