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Finding the Third Proportional to 539,398 and 818,938

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Solution

The third proportional to 539,398 and 818,938 is: 1,243,348.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,398 : 818,938 = 818,938 : x
  2. Step 2: Convert to fraction form
    539,398/818,938 = 818,938/x
  3. Step 3: Cross multiply
    539,398x = 818,938 × 818,938
  4. Step 4: Simplify right side
    539,398x = 670,659,447,844
  5. Step 5: Solve for x
    x = 670,659,447,844/539,398
  6. Step 6: Final answer
    x = 1,243,348.04

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.