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Finding the Fourth Proportional to 577,691.52, 866,619.84 and 178,365.12

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Solution

The fourth proportional to 577,691.52, 866,619.84 and 178,365.12 is: 267,573.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,691.52 : 866,619.84 = 178,365.12 : x
  2. Step 2: Convert to fraction form
    577,691.52/866,619.84 = 178,365.12/x
  3. Step 3: Cross multiply
    577,691.52x = 866,619.84 × 178,365.12
  4. Step 4: Simplify right side
    577,691.52x = 154,574,751,755.98
  5. Step 5: Solve for x
    x = 154,574,751,755.98/577,691.52
  6. Step 6: Final answer
    x = 267,573.17

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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.