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Finding the Third Proportional to 314,616 and 681,721

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Solution

The third proportional to 314,616 and 681,721 is: 1,477,177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,616 : 681,721 = 681,721 : x
  2. Step 2: Convert to fraction form
    314,616/681,721 = 681,721/x
  3. Step 3: Cross multiply
    314,616x = 681,721 × 681,721
  4. Step 4: Simplify right side
    314,616x = 464,743,521,841
  5. Step 5: Solve for x
    x = 464,743,521,841/314,616
  6. Step 6: Final answer
    x = 1,477,177.01

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.