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Finding the Fourth Proportional to 493,963.68, 681,665.60 and 267,608.64

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Solution

The fourth proportional to 493,963.68, 681,665.60 and 267,608.64 is: 369,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,963.68 : 681,665.60 = 267,608.64 : x
  2. Step 2: Convert to fraction form
    493,963.68/681,665.60 = 267,608.64/x
  3. Step 3: Cross multiply
    493,963.68x = 681,665.60 × 267,608.64
  4. Step 4: Simplify right side
    493,963.68x = 182,419,602,812.74
  5. Step 5: Solve for x
    x = 182,419,602,812.74/493,963.68
  6. Step 6: Final answer
    x = 369,297.60

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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.