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Finding the Fourth Proportional to 437,613.20, 656,441.40 and 227,661.20

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Solution

The fourth proportional to 437,613.20, 656,441.40 and 227,661.20 is: 341,503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,613.20 : 656,441.40 = 227,661.20 : x
  2. Step 2: Convert to fraction form
    437,613.20/656,441.40 = 227,661.20/x
  3. Step 3: Cross multiply
    437,613.20x = 656,441.40 × 227,661.20
  4. Step 4: Simplify right side
    437,613.20x = 149,446,236,853.68
  5. Step 5: Solve for x
    x = 149,446,236,853.68/437,613.20
  6. Step 6: Final answer
    x = 341,503.04

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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.