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Finding the Fourth Proportional to 577,871.22, 866,591.28 and 198,684.66

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Solution

The fourth proportional to 577,871.22, 866,591.28 and 198,684.66 is: 297,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,871.22 : 866,591.28 = 198,684.66 : x
  2. Step 2: Convert to fraction form
    577,871.22/866,591.28 = 198,684.66/x
  3. Step 3: Cross multiply
    577,871.22x = 866,591.28 × 198,684.66
  4. Step 4: Simplify right side
    577,871.22x = 172,178,393,825.77
  5. Step 5: Solve for x
    x = 172,178,393,825.77/577,871.22
  6. Step 6: Final answer
    x = 297,952.88

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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.