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Finding the Fourth Proportional to 497,772.80, 746,659.20 and 165,348.80

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Solution

The fourth proportional to 497,772.80, 746,659.20 and 165,348.80 is: 248,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,772.80 : 746,659.20 = 165,348.80 : x
  2. Step 2: Convert to fraction form
    497,772.80/746,659.20 = 165,348.80/x
  3. Step 3: Cross multiply
    497,772.80x = 746,659.20 × 165,348.80
  4. Step 4: Simplify right side
    497,772.80x = 123,459,202,728.96
  5. Step 5: Solve for x
    x = 123,459,202,728.96/497,772.80
  6. Step 6: Final answer
    x = 248,023.20

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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.