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Finding the Fourth Proportional to 482,829.60, 666,273.78 and 267,969.80

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Solution

The fourth proportional to 482,829.60, 666,273.78 and 267,969.80 is: 369,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,829.60 : 666,273.78 = 267,969.80 : x
  2. Step 2: Convert to fraction form
    482,829.60/666,273.78 = 267,969.80/x
  3. Step 3: Cross multiply
    482,829.60x = 666,273.78 × 267,969.80
  4. Step 4: Simplify right side
    482,829.60x = 178,541,251,571.84
  5. Step 5: Solve for x
    x = 178,541,251,571.84/482,829.60
  6. Step 6: Final answer
    x = 369,781.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.