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Finding the Fourth Proportional to 367,891.20, 551,836.80 and 273,412.80

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Solution

The fourth proportional to 367,891.20, 551,836.80 and 273,412.80 is: 410,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,891.20 : 551,836.80 = 273,412.80 : x
  2. Step 2: Convert to fraction form
    367,891.20/551,836.80 = 273,412.80/x
  3. Step 3: Cross multiply
    367,891.20x = 551,836.80 × 273,412.80
  4. Step 4: Simplify right side
    367,891.20x = 150,879,244,631.04
  5. Step 5: Solve for x
    x = 150,879,244,631.04/367,891.20
  6. Step 6: Final answer
    x = 410,119.20

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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.