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Finding the Fourth Proportional to 568,539.20, 851,685.60 and 288,257.60

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Solution

The fourth proportional to 568,539.20, 851,685.60 and 288,257.60 is: 431,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,539.20 : 851,685.60 = 288,257.60 : x
  2. Step 2: Convert to fraction form
    568,539.20/851,685.60 = 288,257.60/x
  3. Step 3: Cross multiply
    568,539.20x = 851,685.60 × 288,257.60
  4. Step 4: Simplify right side
    568,539.20x = 245,504,847,010.56
  5. Step 5: Solve for x
    x = 245,504,847,010.56/568,539.20
  6. Step 6: Final answer
    x = 431,816.92

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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.