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Finding the Fourth Proportional to 324,618.60, 486,053.10 and 254,634.60

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Solution

The fourth proportional to 324,618.60, 486,053.10 and 254,634.60 is: 381,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,618.60 : 486,053.10 = 254,634.60 : x
  2. Step 2: Convert to fraction form
    324,618.60/486,053.10 = 254,634.60/x
  3. Step 3: Cross multiply
    324,618.60x = 486,053.10 × 254,634.60
  4. Step 4: Simplify right side
    324,618.60x = 123,765,936,697.26
  5. Step 5: Solve for x
    x = 123,765,936,697.26/324,618.60
  6. Step 6: Final answer
    x = 381,265.70

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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.