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Finding the Third Proportional to 551,445 and 1,214,631

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Solution

The third proportional to 551,445 and 1,214,631 is: 2,675,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,445 : 1,214,631 = 1,214,631 : x
  2. Step 2: Convert to fraction form
    551,445/1,214,631 = 1,214,631/x
  3. Step 3: Cross multiply
    551,445x = 1,214,631 × 1,214,631
  4. Step 4: Simplify right side
    551,445x = 1,475,328,466,161
  5. Step 5: Solve for x
    x = 1,475,328,466,161/551,445
  6. Step 6: Final answer
    x = 2,675,386.42

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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.