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Finding the Third Proportional to 291,168 and 633,616

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Solution

The third proportional to 291,168 and 633,616 is: 1,378,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,168 : 633,616 = 633,616 : x
  2. Step 2: Convert to fraction form
    291,168/633,616 = 633,616/x
  3. Step 3: Cross multiply
    291,168x = 633,616 × 633,616
  4. Step 4: Simplify right side
    291,168x = 401,469,235,456
  5. Step 5: Solve for x
    x = 401,469,235,456/291,168
  6. Step 6: Final answer
    x = 1,378,823.34

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.