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Finding the Fourth Proportional to 1,409,966.92, 1,945,723.36 and 798,107.48

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Solution

The fourth proportional to 1,409,966.92, 1,945,723.36 and 798,107.48 is: 1,101,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,966.92 : 1,945,723.36 = 798,107.48 : x
  2. Step 2: Convert to fraction form
    1,409,966.92/1,945,723.36 = 798,107.48/x
  3. Step 3: Cross multiply
    1,409,966.92x = 1,945,723.36 × 798,107.48
  4. Step 4: Simplify right side
    1,409,966.92x = 1,552,896,367,626.73
  5. Step 5: Solve for x
    x = 1,552,896,367,626.73/1,409,966.92
  6. Step 6: Final answer
    x = 1,101,370.78

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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.