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Finding the Fourth Proportional to 296,999.60, 445,879.56 and 255,147.44

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Solution

The fourth proportional to 296,999.60, 445,879.56 and 255,147.44 is: 383,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,999.60 : 445,879.56 = 255,147.44 : x
  2. Step 2: Convert to fraction form
    296,999.60/445,879.56 = 255,147.44/x
  3. Step 3: Cross multiply
    296,999.60x = 445,879.56 × 255,147.44
  4. Step 4: Simplify right side
    296,999.60x = 113,765,028,282.33
  5. Step 5: Solve for x
    x = 113,765,028,282.33/296,999.60
  6. Step 6: Final answer
    x = 383,047.75

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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.