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Finding the Fourth Proportional to 527,146.97, 790,713.36 and 127,791.18

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Solution

The fourth proportional to 527,146.97, 790,713.36 and 127,791.18 is: 191,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,146.97 : 790,713.36 = 127,791.18 : x
  2. Step 2: Convert to fraction form
    527,146.97/790,713.36 = 127,791.18/x
  3. Step 3: Cross multiply
    527,146.97x = 790,713.36 × 127,791.18
  4. Step 4: Simplify right side
    527,146.97x = 101,046,193,316.17
  5. Step 5: Solve for x
    x = 101,046,193,316.17/527,146.97
  6. Step 6: Final answer
    x = 191,685.05

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1.5x scale

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.