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Finding the Third Proportional to 215,795 and 474,417

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Solution

The third proportional to 215,795 and 474,417 is: 1,042,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,795 : 474,417 = 474,417 : x
  2. Step 2: Convert to fraction form
    215,795/474,417 = 474,417/x
  3. Step 3: Cross multiply
    215,795x = 474,417 × 474,417
  4. Step 4: Simplify right side
    215,795x = 225,071,489,889
  5. Step 5: Solve for x
    x = 225,071,489,889/215,795
  6. Step 6: Final answer
    x = 1,042,987.51

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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.