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Finding the Third Proportional to 427,191 and 909,597

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Solution

The third proportional to 427,191 and 909,597 is: 1,936,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,191 : 909,597 = 909,597 : x
  2. Step 2: Convert to fraction form
    427,191/909,597 = 909,597/x
  3. Step 3: Cross multiply
    427,191x = 909,597 × 909,597
  4. Step 4: Simplify right side
    427,191x = 827,366,702,409
  5. Step 5: Solve for x
    x = 827,366,702,409/427,191
  6. Step 6: Final answer
    x = 1,936,760.61

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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.