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Finding the Fourth Proportional to 437,620.20, 656,451.90 and 227,668.20

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Solution

The fourth proportional to 437,620.20, 656,451.90 and 227,668.20 is: 341,513.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,620.20 : 656,451.90 = 227,668.20 : x
  2. Step 2: Convert to fraction form
    437,620.20/656,451.90 = 227,668.20/x
  3. Step 3: Cross multiply
    437,620.20x = 656,451.90 × 227,668.20
  4. Step 4: Simplify right side
    437,620.20x = 149,453,222,459.58
  5. Step 5: Solve for x
    x = 149,453,222,459.58/437,620.20
  6. Step 6: Final answer
    x = 341,513.54

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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.