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Finding the Third Proportional to 622,195 and 989,333

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Solution

The third proportional to 622,195 and 989,333 is: 1,573,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,195 : 989,333 = 989,333 : x
  2. Step 2: Convert to fraction form
    622,195/989,333 = 989,333/x
  3. Step 3: Cross multiply
    622,195x = 989,333 × 989,333
  4. Step 4: Simplify right side
    622,195x = 978,779,784,889
  5. Step 5: Solve for x
    x = 978,779,784,889/622,195
  6. Step 6: Final answer
    x = 1,573,107.76

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.