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Finding the Fourth Proportional to 383,385.43, 529,073.99 and 222,335.96

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Solution

The fourth proportional to 383,385.43, 529,073.99 and 222,335.96 is: 306,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,385.43 : 529,073.99 = 222,335.96 : x
  2. Step 2: Convert to fraction form
    383,385.43/529,073.99 = 222,335.96/x
  3. Step 3: Cross multiply
    383,385.43x = 529,073.99 × 222,335.96
  4. Step 4: Simplify right side
    383,385.43x = 117,632,172,366.00
  5. Step 5: Solve for x
    x = 117,632,172,366.00/383,385.43
  6. Step 6: Final answer
    x = 306,824.84

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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.