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Finding the Fourth Proportional to 843,399.90, 1,265,198.22 and 843,399.90

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Solution

The fourth proportional to 843,399.90, 1,265,198.22 and 843,399.90 is: 1,265,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,399.90 : 1,265,198.22 = 843,399.90 : x
  2. Step 2: Convert to fraction form
    843,399.90/1,265,198.22 = 843,399.90/x
  3. Step 3: Cross multiply
    843,399.90x = 1,265,198.22 × 843,399.90
  4. Step 4: Simplify right side
    843,399.90x = 1,067,068,052,228.18
  5. Step 5: Solve for x
    x = 1,067,068,052,228.18/843,399.90
  6. Step 6: Final answer
    x = 1,265,198.22

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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.