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Finding the Third Proportional to 572,640 and 1,221,114

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Solution

The third proportional to 572,640 and 1,221,114 is: 2,603,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,640 : 1,221,114 = 1,221,114 : x
  2. Step 2: Convert to fraction form
    572,640/1,221,114 = 1,221,114/x
  3. Step 3: Cross multiply
    572,640x = 1,221,114 × 1,221,114
  4. Step 4: Simplify right side
    572,640x = 1,491,119,400,996
  5. Step 5: Solve for x
    x = 1,491,119,400,996/572,640
  6. Step 6: Final answer
    x = 2,603,938.60

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.