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Finding the Third Proportional to 220,714 and 341,688

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Solution

The third proportional to 220,714 and 341,688 is: 528,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,714 : 341,688 = 341,688 : x
  2. Step 2: Convert to fraction form
    220,714/341,688 = 341,688/x
  3. Step 3: Cross multiply
    220,714x = 341,688 × 341,688
  4. Step 4: Simplify right side
    220,714x = 116,750,689,344
  5. Step 5: Solve for x
    x = 116,750,689,344/220,714
  6. Step 6: Final answer
    x = 528,968.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.