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Finding the Fourth Proportional to 383,954.50, 529,791.60 and 222,772.60

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Solution

The fourth proportional to 383,954.50, 529,791.60 and 222,772.60 is: 307,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,954.50 : 529,791.60 = 222,772.60 : x
  2. Step 2: Convert to fraction form
    383,954.50/529,791.60 = 222,772.60/x
  3. Step 3: Cross multiply
    383,954.50x = 529,791.60 × 222,772.60
  4. Step 4: Simplify right side
    383,954.50x = 118,023,052,190.16
  5. Step 5: Solve for x
    x = 118,023,052,190.16/383,954.50
  6. Step 6: Final answer
    x = 307,388.12

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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.