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Finding the Fourth Proportional to 297,834.83, 411,014.78 and 161,869.12

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Solution

The fourth proportional to 297,834.83, 411,014.78 and 161,869.12 is: 223,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,834.83 : 411,014.78 = 161,869.12 : x
  2. Step 2: Convert to fraction form
    297,834.83/411,014.78 = 161,869.12/x
  3. Step 3: Cross multiply
    297,834.83x = 411,014.78 × 161,869.12
  4. Step 4: Simplify right side
    297,834.83x = 66,530,603,517.59
  5. Step 5: Solve for x
    x = 66,530,603,517.59/297,834.83
  6. Step 6: Final answer
    x = 223,380.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.