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Finding the Fourth Proportional to 482,793.60, 724,190.40 and 258,844.80

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Solution

The fourth proportional to 482,793.60, 724,190.40 and 258,844.80 is: 388,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,793.60 : 724,190.40 = 258,844.80 : x
  2. Step 2: Convert to fraction form
    482,793.60/724,190.40 = 258,844.80/x
  3. Step 3: Cross multiply
    482,793.60x = 724,190.40 × 258,844.80
  4. Step 4: Simplify right side
    482,793.60x = 187,452,919,249.92
  5. Step 5: Solve for x
    x = 187,452,919,249.92/482,793.60
  6. Step 6: Final answer
    x = 388,267.20

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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.