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Finding the Third Proportional to 406,986 and 884,036

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Solution

The third proportional to 406,986 and 884,036 is: 1,920,261.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,986 : 884,036 = 884,036 : x
  2. Step 2: Convert to fraction form
    406,986/884,036 = 884,036/x
  3. Step 3: Cross multiply
    406,986x = 884,036 × 884,036
  4. Step 4: Simplify right side
    406,986x = 781,519,649,296
  5. Step 5: Solve for x
    x = 781,519,649,296/406,986
  6. Step 6: Final answer
    x = 1,920,261.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.