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Finding the Fourth Proportional to 1,789,616.55, 2,469,713.12 and 1,015,299.69

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Solution

The fourth proportional to 1,789,616.55, 2,469,713.12 and 1,015,299.69 is: 1,401,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,616.55 : 2,469,713.12 = 1,015,299.69 : x
  2. Step 2: Convert to fraction form
    1,789,616.55/2,469,713.12 = 1,015,299.69/x
  3. Step 3: Cross multiply
    1,789,616.55x = 2,469,713.12 × 1,015,299.69
  4. Step 4: Simplify right side
    1,789,616.55x = 2,507,498,960,048.43
  5. Step 5: Solve for x
    x = 2,507,498,960,048.43/1,789,616.55
  6. Step 6: Final answer
    x = 1,401,137.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.