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Finding the Fourth Proportional to 552,652.20, 829,172.70 and 271,981.80

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Solution

The fourth proportional to 552,652.20, 829,172.70 and 271,981.80 is: 408,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,652.20 : 829,172.70 = 271,981.80 : x
  2. Step 2: Convert to fraction form
    552,652.20/829,172.70 = 271,981.80/x
  3. Step 3: Cross multiply
    552,652.20x = 829,172.70 × 271,981.80
  4. Step 4: Simplify right side
    552,652.20x = 225,519,883,456.86
  5. Step 5: Solve for x
    x = 225,519,883,456.86/552,652.20
  6. Step 6: Final answer
    x = 408,068.37

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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.