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Finding the Third Proportional to 653,660 and 980,160

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Solution

The third proportional to 653,660 and 980,160 is: 1,469,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,660 : 980,160 = 980,160 : x
  2. Step 2: Convert to fraction form
    653,660/980,160 = 980,160/x
  3. Step 3: Cross multiply
    653,660x = 980,160 × 980,160
  4. Step 4: Simplify right side
    653,660x = 960,713,625,600
  5. Step 5: Solve for x
    x = 960,713,625,600/653,660
  6. Step 6: Final answer
    x = 1,469,745.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.