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Finding the Third Proportional to 623,961 and 987,156

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Solution

The third proportional to 623,961 and 987,156 is: 1,561,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,961 : 987,156 = 987,156 : x
  2. Step 2: Convert to fraction form
    623,961/987,156 = 987,156/x
  3. Step 3: Cross multiply
    623,961x = 987,156 × 987,156
  4. Step 4: Simplify right side
    623,961x = 974,476,968,336
  5. Step 5: Solve for x
    x = 974,476,968,336/623,961
  6. Step 6: Final answer
    x = 1,561,759.42

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.