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Finding the Fourth Proportional to 367,716.40, 551,182.20 and 209,604.40

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Solution

The fourth proportional to 367,716.40, 551,182.20 and 209,604.40 is: 314,182.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,716.40 : 551,182.20 = 209,604.40 : x
  2. Step 2: Convert to fraction form
    367,716.40/551,182.20 = 209,604.40/x
  3. Step 3: Cross multiply
    367,716.40x = 551,182.20 × 209,604.40
  4. Step 4: Simplify right side
    367,716.40x = 115,530,214,321.68
  5. Step 5: Solve for x
    x = 115,530,214,321.68/367,716.40
  6. Step 6: Final answer
    x = 314,182.93

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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.