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Finding the Fourth Proportional to 1,198,743.05, 1,795,242.08 and 873,659.85

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Solution

The fourth proportional to 1,198,743.05, 1,795,242.08 and 873,659.85 is: 1,308,396.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,743.05 : 1,795,242.08 = 873,659.85 : x
  2. Step 2: Convert to fraction form
    1,198,743.05/1,795,242.08 = 873,659.85/x
  3. Step 3: Cross multiply
    1,198,743.05x = 1,795,242.08 × 873,659.85
  4. Step 4: Simplify right side
    1,198,743.05x = 1,568,430,928,510.64
  5. Step 5: Solve for x
    x = 1,568,430,928,510.64/1,198,743.05
  6. Step 6: Final answer
    x = 1,308,396.27

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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.