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Finding the Fourth Proportional to 326,082.26, 488,876.91 and 213,790.73

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Solution

The fourth proportional to 326,082.26, 488,876.91 and 213,790.73 is: 320,524.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,082.26 : 488,876.91 = 213,790.73 : x
  2. Step 2: Convert to fraction form
    326,082.26/488,876.91 = 213,790.73/x
  3. Step 3: Cross multiply
    326,082.26x = 488,876.91 × 213,790.73
  4. Step 4: Simplify right side
    326,082.26x = 104,517,351,469.04
  5. Step 5: Solve for x
    x = 104,517,351,469.04/326,082.26
  6. Step 6: Final answer
    x = 320,524.49

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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.