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Finding the Fourth Proportional to 367,566.80, 551,366.40 and 207,640.40

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Solution

The fourth proportional to 367,566.80, 551,366.40 and 207,640.40 is: 311,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,566.80 : 551,366.40 = 207,640.40 : x
  2. Step 2: Convert to fraction form
    367,566.80/551,366.40 = 207,640.40/x
  3. Step 3: Cross multiply
    367,566.80x = 551,366.40 × 207,640.40
  4. Step 4: Simplify right side
    367,566.80x = 114,485,939,842.56
  5. Step 5: Solve for x
    x = 114,485,939,842.56/367,566.80
  6. Step 6: Final answer
    x = 311,469.75

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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.