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Finding the Fourth Proportional to 2,271,786.80, 3,404,785.80 and 1,207,338.80

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Solution

The fourth proportional to 2,271,786.80, 3,404,785.80 and 1,207,338.80 is: 1,809,469.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271,786.80 : 3,404,785.80 = 1,207,338.80 : x
  2. Step 2: Convert to fraction form
    2,271,786.80/3,404,785.80 = 1,207,338.80/x
  3. Step 3: Cross multiply
    2,271,786.80x = 3,404,785.80 × 1,207,338.80
  4. Step 4: Simplify right side
    2,271,786.80x = 4,110,730,002,029.04
  5. Step 5: Solve for x
    x = 4,110,730,002,029.04/2,271,786.80
  6. Step 6: Final answer
    x = 1,809,469.97

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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.