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Finding the Third Proportional to 656,262 and 938,439

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Solution

The third proportional to 656,262 and 938,439 is: 1,341,945.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,262 : 938,439 = 938,439 : x
  2. Step 2: Convert to fraction form
    656,262/938,439 = 938,439/x
  3. Step 3: Cross multiply
    656,262x = 938,439 × 938,439
  4. Step 4: Simplify right side
    656,262x = 880,667,756,721
  5. Step 5: Solve for x
    x = 880,667,756,721/656,262
  6. Step 6: Final answer
    x = 1,341,945.38

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.