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Finding the Fourth Proportional to 488,889.20, 733,661.85 and 222,512.60

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Solution

The fourth proportional to 488,889.20, 733,661.85 and 222,512.60 is: 333,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,889.20 : 733,661.85 = 222,512.60 : x
  2. Step 2: Convert to fraction form
    488,889.20/733,661.85 = 222,512.60/x
  3. Step 3: Cross multiply
    488,889.20x = 733,661.85 × 222,512.60
  4. Step 4: Simplify right side
    488,889.20x = 163,249,005,764.31
  5. Step 5: Solve for x
    x = 163,249,005,764.31/488,889.20
  6. Step 6: Final answer
    x = 333,918.21

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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.