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Finding the Third Proportional to 500,445 and 1,100,979

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Solution

The third proportional to 500,445 and 1,100,979 is: 2,422,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,445 : 1,100,979 = 1,100,979 : x
  2. Step 2: Convert to fraction form
    500,445/1,100,979 = 1,100,979/x
  3. Step 3: Cross multiply
    500,445x = 1,100,979 × 1,100,979
  4. Step 4: Simplify right side
    500,445x = 1,212,154,758,441
  5. Step 5: Solve for x
    x = 1,212,154,758,441/500,445
  6. Step 6: Final answer
    x = 2,422,153.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.