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Finding the Fourth Proportional to 308,566.80, 462,850.20 and 269,200.80

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Solution

The fourth proportional to 308,566.80, 462,850.20 and 269,200.80 is: 403,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,566.80 : 462,850.20 = 269,200.80 : x
  2. Step 2: Convert to fraction form
    308,566.80/462,850.20 = 269,200.80/x
  3. Step 3: Cross multiply
    308,566.80x = 462,850.20 × 269,200.80
  4. Step 4: Simplify right side
    308,566.80x = 124,599,644,120.16
  5. Step 5: Solve for x
    x = 124,599,644,120.16/308,566.80
  6. Step 6: Final answer
    x = 403,801.20

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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.