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Finding the Third Proportional to 383,267 and 806,260

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Solution

The third proportional to 383,267 and 806,260 is: 1,696,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,267 : 806,260 = 806,260 : x
  2. Step 2: Convert to fraction form
    383,267/806,260 = 806,260/x
  3. Step 3: Cross multiply
    383,267x = 806,260 × 806,260
  4. Step 4: Simplify right side
    383,267x = 650,055,187,600
  5. Step 5: Solve for x
    x = 650,055,187,600/383,267
  6. Step 6: Final answer
    x = 1,696,089.64

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.