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Finding the Fourth Proportional to 483,271.20, 724,906.80 and 476,272.80

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Solution

The fourth proportional to 483,271.20, 724,906.80 and 476,272.80 is: 714,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,271.20 : 724,906.80 = 476,272.80 : x
  2. Step 2: Convert to fraction form
    483,271.20/724,906.80 = 476,272.80/x
  3. Step 3: Cross multiply
    483,271.20x = 724,906.80 × 476,272.80
  4. Step 4: Simplify right side
    483,271.20x = 345,253,391,375.04
  5. Step 5: Solve for x
    x = 345,253,391,375.04/483,271.20
  6. Step 6: Final answer
    x = 714,409.20

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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.