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Finding the Fourth Proportional to 231,340.60, 347,010.90 and 191,974.60

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Solution

The fourth proportional to 231,340.60, 347,010.90 and 191,974.60 is: 287,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,340.60 : 347,010.90 = 191,974.60 : x
  2. Step 2: Convert to fraction form
    231,340.60/347,010.90 = 191,974.60/x
  3. Step 3: Cross multiply
    231,340.60x = 347,010.90 × 191,974.60
  4. Step 4: Simplify right side
    231,340.60x = 66,617,278,723.14
  5. Step 5: Solve for x
    x = 66,617,278,723.14/231,340.60
  6. Step 6: Final answer
    x = 287,961.90

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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.