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Finding the Third Proportional to 861,567 and 1,874,220

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Solution

The third proportional to 861,567 and 1,874,220 is: 4,077,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,567 : 1,874,220 = 1,874,220 : x
  2. Step 2: Convert to fraction form
    861,567/1,874,220 = 1,874,220/x
  3. Step 3: Cross multiply
    861,567x = 1,874,220 × 1,874,220
  4. Step 4: Simplify right side
    861,567x = 3,512,700,608,400
  5. Step 5: Solve for x
    x = 3,512,700,608,400/861,567
  6. Step 6: Final answer
    x = 4,077,106.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.