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Finding the Fourth Proportional to 454,773.29, 681,855.57 and 217,986.80

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Solution

The fourth proportional to 454,773.29, 681,855.57 and 217,986.80 is: 326,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,773.29 : 681,855.57 = 217,986.80 : x
  2. Step 2: Convert to fraction form
    454,773.29/681,855.57 = 217,986.80/x
  3. Step 3: Cross multiply
    454,773.29x = 681,855.57 × 217,986.80
  4. Step 4: Simplify right side
    454,773.29x = 148,635,510,357.20
  5. Step 5: Solve for x
    x = 148,635,510,357.20/454,773.29
  6. Step 6: Final answer
    x = 326,834.30

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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.