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Finding the Fourth Proportional to 422,063.10, 582,446.79 and 231,076.44

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Solution

The fourth proportional to 422,063.10, 582,446.79 and 231,076.44 is: 318,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,063.10 : 582,446.79 = 231,076.44 : x
  2. Step 2: Convert to fraction form
    422,063.10/582,446.79 = 231,076.44/x
  3. Step 3: Cross multiply
    422,063.10x = 582,446.79 × 231,076.44
  4. Step 4: Simplify right side
    422,063.10x = 134,589,730,722.63
  5. Step 5: Solve for x
    x = 134,589,730,722.63/422,063.10
  6. Step 6: Final answer
    x = 318,885.33

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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.