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Finding the Third Proportional to 393,912 and 590,719

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Solution

The third proportional to 393,912 and 590,719 is: 885,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,912 : 590,719 = 590,719 : x
  2. Step 2: Convert to fraction form
    393,912/590,719 = 590,719/x
  3. Step 3: Cross multiply
    393,912x = 590,719 × 590,719
  4. Step 4: Simplify right side
    393,912x = 348,948,936,961
  5. Step 5: Solve for x
    x = 348,948,936,961/393,912
  6. Step 6: Final answer
    x = 885,855.06

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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.