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Finding the Third Proportional to 1,211,488.31 and 1,875,651.19

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Solution

The third proportional to 1,211,488.31 and 1,875,651.19 is: 2,903,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,488.31 : 1,875,651.19 = 1,875,651.19 : x
  2. Step 2: Convert to fraction form
    1,211,488.31/1,875,651.19 = 1,875,651.19/x
  3. Step 3: Cross multiply
    1,211,488.31x = 1,875,651.19 × 1,875,651.19
  4. Step 4: Simplify right side
    1,211,488.31x = 3,518,067,377,170.16
  5. Step 5: Solve for x
    x = 3,518,067,377,170.16/1,211,488.31
  6. Step 6: Final answer
    x = 2,903,921.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.