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Finding the Third Proportional to 405,074 and 886,398

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Solution

The third proportional to 405,074 and 886,398 is: 1,939,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,074 : 886,398 = 886,398 : x
  2. Step 2: Convert to fraction form
    405,074/886,398 = 886,398/x
  3. Step 3: Cross multiply
    405,074x = 886,398 × 886,398
  4. Step 4: Simplify right side
    405,074x = 785,701,414,404
  5. Step 5: Solve for x
    x = 785,701,414,404/405,074
  6. Step 6: Final answer
    x = 1,939,649.09

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.