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Finding the Third Proportional to 393,840.50 and 590,616.75

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Solution

The third proportional to 393,840.50 and 590,616.75 is: 885,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,840.50 : 590,616.75 = 590,616.75 : x
  2. Step 2: Convert to fraction form
    393,840.50/590,616.75 = 590,616.75/x
  3. Step 3: Cross multiply
    393,840.50x = 590,616.75 × 590,616.75
  4. Step 4: Simplify right side
    393,840.50x = 348,828,145,380.56
  5. Step 5: Solve for x
    x = 348,828,145,380.56/393,840.50
  6. Step 6: Final answer
    x = 885,709.18

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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.