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Finding the Fourth Proportional to 366,911.80, 550,367.70 and 240,612.55

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Solution

The fourth proportional to 366,911.80, 550,367.70 and 240,612.55 is: 360,918.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,911.80 : 550,367.70 = 240,612.55 : x
  2. Step 2: Convert to fraction form
    366,911.80/550,367.70 = 240,612.55/x
  3. Step 3: Cross multiply
    366,911.80x = 550,367.70 × 240,612.55
  4. Step 4: Simplify right side
    366,911.80x = 132,425,375,734.64
  5. Step 5: Solve for x
    x = 132,425,375,734.64/366,911.80
  6. Step 6: Final answer
    x = 360,918.83

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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.