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Finding the Fourth Proportional to 327,641.21, 491,531.93 and 185,553.64

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Solution

The fourth proportional to 327,641.21, 491,531.93 and 185,553.64 is: 278,370.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,641.21 : 491,531.93 = 185,553.64 : x
  2. Step 2: Convert to fraction form
    327,641.21/491,531.93 = 185,553.64/x
  3. Step 3: Cross multiply
    327,641.21x = 491,531.93 × 185,553.64
  4. Step 4: Simplify right side
    327,641.21x = 91,205,539,170.20
  5. Step 5: Solve for x
    x = 91,205,539,170.20/327,641.21
  6. Step 6: Final answer
    x = 278,370.17

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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.