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Finding the Fourth Proportional to 577,523.78, 866,275.84 and 172,716.91

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Solution

The fourth proportional to 577,523.78, 866,275.84 and 172,716.91 is: 259,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,523.78 : 866,275.84 = 172,716.91 : x
  2. Step 2: Convert to fraction form
    577,523.78/866,275.84 = 172,716.91/x
  3. Step 3: Cross multiply
    577,523.78x = 866,275.84 × 172,716.91
  4. Step 4: Simplify right side
    577,523.78x = 149,620,490,431.76
  5. Step 5: Solve for x
    x = 149,620,490,431.76/577,523.78
  6. Step 6: Final answer
    x = 259,072.43

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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.