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Finding the Third Proportional to 809,868 and 1,772,275

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Solution

The third proportional to 809,868 and 1,772,275 is: 3,878,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,868 : 1,772,275 = 1,772,275 : x
  2. Step 2: Convert to fraction form
    809,868/1,772,275 = 1,772,275/x
  3. Step 3: Cross multiply
    809,868x = 1,772,275 × 1,772,275
  4. Step 4: Simplify right side
    809,868x = 3,140,958,675,625
  5. Step 5: Solve for x
    x = 3,140,958,675,625/809,868
  6. Step 6: Final answer
    x = 3,878,358.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.