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Finding the Third Proportional to 150,608 and 313,688

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Solution

The third proportional to 150,608 and 313,688 is: 653,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,608 : 313,688 = 313,688 : x
  2. Step 2: Convert to fraction form
    150,608/313,688 = 313,688/x
  3. Step 3: Cross multiply
    150,608x = 313,688 × 313,688
  4. Step 4: Simplify right side
    150,608x = 98,400,161,344
  5. Step 5: Solve for x
    x = 98,400,161,344/150,608
  6. Step 6: Final answer
    x = 653,352.82

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.