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Finding the Third Proportional to 208,923 and 322,968

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Solution

The third proportional to 208,923 and 322,968 is: 499,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,923 : 322,968 = 322,968 : x
  2. Step 2: Convert to fraction form
    208,923/322,968 = 322,968/x
  3. Step 3: Cross multiply
    208,923x = 322,968 × 322,968
  4. Step 4: Simplify right side
    208,923x = 104,308,329,024
  5. Step 5: Solve for x
    x = 104,308,329,024/208,923
  6. Step 6: Final answer
    x = 499,266.85

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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.