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Finding the Third Proportional to 393,842 and 590,619

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Solution

The third proportional to 393,842 and 590,619 is: 885,712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,842 : 590,619 = 590,619 : x
  2. Step 2: Convert to fraction form
    393,842/590,619 = 590,619/x
  3. Step 3: Cross multiply
    393,842x = 590,619 × 590,619
  4. Step 4: Simplify right side
    393,842x = 348,830,803,161
  5. Step 5: Solve for x
    x = 348,830,803,161/393,842
  6. Step 6: Final answer
    x = 885,712.55

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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.