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Finding the Fourth Proportional to 481,205.80, 722,327.10 and 271,253.80

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Solution

The fourth proportional to 481,205.80, 722,327.10 and 271,253.80 is: 407,172.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,205.80 : 722,327.10 = 271,253.80 : x
  2. Step 2: Convert to fraction form
    481,205.80/722,327.10 = 271,253.80/x
  3. Step 3: Cross multiply
    481,205.80x = 722,327.10 × 271,253.80
  4. Step 4: Simplify right side
    481,205.80x = 195,933,970,717.98
  5. Step 5: Solve for x
    x = 195,933,970,717.98/481,205.80
  6. Step 6: Final answer
    x = 407,172.92

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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.