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Finding the Third Proportional to 890,466 and 1,980,246

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Solution

The third proportional to 890,466 and 1,980,246 is: 4,403,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,466 : 1,980,246 = 1,980,246 : x
  2. Step 2: Convert to fraction form
    890,466/1,980,246 = 1,980,246/x
  3. Step 3: Cross multiply
    890,466x = 1,980,246 × 1,980,246
  4. Step 4: Simplify right side
    890,466x = 3,921,374,220,516
  5. Step 5: Solve for x
    x = 3,921,374,220,516/890,466
  6. Step 6: Final answer
    x = 4,403,732.68

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.