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Finding the Third Proportional to 203,432 and 314,994

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Solution

The third proportional to 203,432 and 314,994 is: 487,736.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,432 : 314,994 = 314,994 : x
  2. Step 2: Convert to fraction form
    203,432/314,994 = 314,994/x
  3. Step 3: Cross multiply
    203,432x = 314,994 × 314,994
  4. Step 4: Simplify right side
    203,432x = 99,221,220,036
  5. Step 5: Solve for x
    x = 99,221,220,036/203,432
  6. Step 6: Final answer
    x = 487,736.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.