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Finding the Third Proportional to 193,674 and 290,415

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Solution

The third proportional to 193,674 and 290,415 is: 435,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,674 : 290,415 = 290,415 : x
  2. Step 2: Convert to fraction form
    193,674/290,415 = 290,415/x
  3. Step 3: Cross multiply
    193,674x = 290,415 × 290,415
  4. Step 4: Simplify right side
    193,674x = 84,340,872,225
  5. Step 5: Solve for x
    x = 84,340,872,225/193,674
  6. Step 6: Final answer
    x = 435,478.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.