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Finding the Third Proportional to 808,224 and 1,267,920

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Solution

The third proportional to 808,224 and 1,267,920 is: 1,989,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,224 : 1,267,920 = 1,267,920 : x
  2. Step 2: Convert to fraction form
    808,224/1,267,920 = 1,267,920/x
  3. Step 3: Cross multiply
    808,224x = 1,267,920 × 1,267,920
  4. Step 4: Simplify right side
    808,224x = 1,607,621,126,400
  5. Step 5: Solve for x
    x = 1,607,621,126,400/808,224
  6. Step 6: Final answer
    x = 1,989,078.68

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.