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Finding the Fourth Proportional to 1,942,795.11, 2,914,198.13 and 680,327.49

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Solution

The fourth proportional to 1,942,795.11, 2,914,198.13 and 680,327.49 is: 1,020,493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,795.11 : 2,914,198.13 = 680,327.49 : x
  2. Step 2: Convert to fraction form
    1,942,795.11/2,914,198.13 = 680,327.49/x
  3. Step 3: Cross multiply
    1,942,795.11x = 2,914,198.13 × 680,327.49
  4. Step 4: Simplify right side
    1,942,795.11x = 1,982,609,100,846.41
  5. Step 5: Solve for x
    x = 1,982,609,100,846.41/1,942,795.11
  6. Step 6: Final answer
    x = 1,020,493.15

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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.