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Finding the Third Proportional to 275,553 and 605,313

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Solution

The third proportional to 275,553 and 605,313 is: 1,329,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,553 : 605,313 = 605,313 : x
  2. Step 2: Convert to fraction form
    275,553/605,313 = 605,313/x
  3. Step 3: Cross multiply
    275,553x = 605,313 × 605,313
  4. Step 4: Simplify right side
    275,553x = 366,403,827,969
  5. Step 5: Solve for x
    x = 366,403,827,969/275,553
  6. Step 6: Final answer
    x = 1,329,703.64

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.