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Finding the Third Proportional to 205,276 and 426,878

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Solution

The third proportional to 205,276 and 426,878 is: 887,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,276 : 426,878 = 426,878 : x
  2. Step 2: Convert to fraction form
    205,276/426,878 = 426,878/x
  3. Step 3: Cross multiply
    205,276x = 426,878 × 426,878
  4. Step 4: Simplify right side
    205,276x = 182,224,826,884
  5. Step 5: Solve for x
    x = 182,224,826,884/205,276
  6. Step 6: Final answer
    x = 887,706.44

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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.