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Finding the Fourth Proportional to 355,680.90, 533,910.15 and 222,711.30

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Solution

The fourth proportional to 355,680.90, 533,910.15 and 222,711.30 is: 334,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,680.90 : 533,910.15 = 222,711.30 : x
  2. Step 2: Convert to fraction form
    355,680.90/533,910.15 = 222,711.30/x
  3. Step 3: Cross multiply
    355,680.90x = 533,910.15 × 222,711.30
  4. Step 4: Simplify right side
    355,680.90x = 118,907,823,589.70
  5. Step 5: Solve for x
    x = 118,907,823,589.70/355,680.90
  6. Step 6: Final answer
    x = 334,310.40

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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.