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Finding the Fourth Proportional to 451,145.79, 676,651.86 and 273,605.13

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Solution

The fourth proportional to 451,145.79, 676,651.86 and 273,605.13 is: 410,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,145.79 : 676,651.86 = 273,605.13 : x
  2. Step 2: Convert to fraction form
    451,145.79/676,651.86 = 273,605.13/x
  3. Step 3: Cross multiply
    451,145.79x = 676,651.86 × 273,605.13
  4. Step 4: Simplify right side
    451,145.79x = 185,135,420,120.04
  5. Step 5: Solve for x
    x = 185,135,420,120.04/451,145.79
  6. Step 6: Final answer
    x = 410,367.17

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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.