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Finding the Fourth Proportional to 327,641.36, 491,462.24 and 90,984.06

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Solution

The fourth proportional to 327,641.36, 491,462.24 and 90,984.06 is: 136,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,641.36 : 491,462.24 = 90,984.06 : x
  2. Step 2: Convert to fraction form
    327,641.36/491,462.24 = 90,984.06/x
  3. Step 3: Cross multiply
    327,641.36x = 491,462.24 × 90,984.06
  4. Step 4: Simplify right side
    327,641.36x = 44,715,229,476.97
  5. Step 5: Solve for x
    x = 44,715,229,476.97/327,641.36
  6. Step 6: Final answer
    x = 136,476.15

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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.