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Finding the Fourth Proportional to 1,944,867.11, 2,917,758.89 and 665,488.51

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Solution

The fourth proportional to 1,944,867.11, 2,917,758.89 and 665,488.51 is: 998,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944,867.11 : 2,917,758.89 = 665,488.51 : x
  2. Step 2: Convert to fraction form
    1,944,867.11/2,917,758.89 = 665,488.51/x
  3. Step 3: Cross multiply
    1,944,867.11x = 2,917,758.89 × 665,488.51
  4. Step 4: Simplify right side
    1,944,867.11x = 1,941,735,010,614.68
  5. Step 5: Solve for x
    x = 1,941,735,010,614.68/1,944,867.11
  6. Step 6: Final answer
    x = 998,389.56

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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.