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Finding the Third Proportional to 379,086 and 810,660

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Solution

The third proportional to 379,086 and 810,660 is: 1,733,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,086 : 810,660 = 810,660 : x
  2. Step 2: Convert to fraction form
    379,086/810,660 = 810,660/x
  3. Step 3: Cross multiply
    379,086x = 810,660 × 810,660
  4. Step 4: Simplify right side
    379,086x = 657,169,635,600
  5. Step 5: Solve for x
    x = 657,169,635,600/379,086
  6. Step 6: Final answer
    x = 1,733,563.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.