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Finding the Fourth Proportional to 404,310.80, 605,591.40 and 262,593.20

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Solution

The fourth proportional to 404,310.80, 605,591.40 and 262,593.20 is: 393,321.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,310.80 : 605,591.40 = 262,593.20 : x
  2. Step 2: Convert to fraction form
    404,310.80/605,591.40 = 262,593.20/x
  3. Step 3: Cross multiply
    404,310.80x = 605,591.40 × 262,593.20
  4. Step 4: Simplify right side
    404,310.80x = 159,024,183,618.48
  5. Step 5: Solve for x
    x = 159,024,183,618.48/404,310.80
  6. Step 6: Final answer
    x = 393,321.63

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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.