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Finding the Fourth Proportional to 327,367.36, 491,061.60 and 90,712.32

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Solution

The fourth proportional to 327,367.36, 491,061.60 and 90,712.32 is: 136,071.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,367.36 : 491,061.60 = 90,712.32 : x
  2. Step 2: Convert to fraction form
    327,367.36/491,061.60 = 90,712.32/x
  3. Step 3: Cross multiply
    327,367.36x = 491,061.60 × 90,712.32
  4. Step 4: Simplify right side
    327,367.36x = 44,545,336,998.91
  5. Step 5: Solve for x
    x = 44,545,336,998.91/327,367.36
  6. Step 6: Final answer
    x = 136,071.41

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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.