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Finding the Fourth Proportional to 327,422.40, 491,133.60 and 117,067.20

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Solution

The fourth proportional to 327,422.40, 491,133.60 and 117,067.20 is: 175,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,422.40 : 491,133.60 = 117,067.20 : x
  2. Step 2: Convert to fraction form
    327,422.40/491,133.60 = 117,067.20/x
  3. Step 3: Cross multiply
    327,422.40x = 491,133.60 × 117,067.20
  4. Step 4: Simplify right side
    327,422.40x = 57,495,635,377.92
  5. Step 5: Solve for x
    x = 57,495,635,377.92/327,422.40
  6. Step 6: Final answer
    x = 175,600.80

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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.