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Finding the Fourth Proportional to 1,719,976.20, 2,373,568.67 and 945,620.21

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Solution

The fourth proportional to 1,719,976.20, 2,373,568.67 and 945,620.21 is: 1,304,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,976.20 : 2,373,568.67 = 945,620.21 : x
  2. Step 2: Convert to fraction form
    1,719,976.20/2,373,568.67 = 945,620.21/x
  3. Step 3: Cross multiply
    1,719,976.20x = 2,373,568.67 × 945,620.21
  4. Step 4: Simplify right side
    1,719,976.20x = 2,244,494,507,805.14
  5. Step 5: Solve for x
    x = 2,244,494,507,805.14/1,719,976.20
  6. Step 6: Final answer
    x = 1,304,956.73

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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.