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Finding the Third Proportional to 1,208,040.75 and 1,689,815.25

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Solution

The third proportional to 1,208,040.75 and 1,689,815.25 is: 2,363,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,040.75 : 1,689,815.25 = 1,689,815.25 : x
  2. Step 2: Convert to fraction form
    1,208,040.75/1,689,815.25 = 1,689,815.25/x
  3. Step 3: Cross multiply
    1,208,040.75x = 1,689,815.25 × 1,689,815.25
  4. Step 4: Simplify right side
    1,208,040.75x = 2,855,475,579,132.56
  5. Step 5: Solve for x
    x = 2,855,475,579,132.56/1,208,040.75
  6. Step 6: Final answer
    x = 2,363,724.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.