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Finding the Fourth Proportional to 646,881.58, 970,772.61 and 267,804.28

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Solution

The fourth proportional to 646,881.58, 970,772.61 and 267,804.28 is: 401,892.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,881.58 : 970,772.61 = 267,804.28 : x
  2. Step 2: Convert to fraction form
    646,881.58/970,772.61 = 267,804.28/x
  3. Step 3: Cross multiply
    646,881.58x = 970,772.61 × 267,804.28
  4. Step 4: Simplify right side
    646,881.58x = 259,977,060,073.97
  5. Step 5: Solve for x
    x = 259,977,060,073.97/646,881.58
  6. Step 6: Final answer
    x = 401,892.82

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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.