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Finding the Third Proportional to 1,205,793.56 and 1,866,210.47

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Solution

The third proportional to 1,205,793.56 and 1,866,210.47 is: 2,888,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,793.56 : 1,866,210.47 = 1,866,210.47 : x
  2. Step 2: Convert to fraction form
    1,205,793.56/1,866,210.47 = 1,866,210.47/x
  3. Step 3: Cross multiply
    1,205,793.56x = 1,866,210.47 × 1,866,210.47
  4. Step 4: Simplify right side
    1,205,793.56x = 3,482,741,513,672.10
  5. Step 5: Solve for x
    x = 3,482,741,513,672.10/1,205,793.56
  6. Step 6: Final answer
    x = 2,888,339.78

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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.