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Finding the Third Proportional to 262,491.75 and 393,943.50

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Solution

The third proportional to 262,491.75 and 393,943.50 is: 591,224.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,491.75 : 393,943.50 = 393,943.50 : x
  2. Step 2: Convert to fraction form
    262,491.75/393,943.50 = 393,943.50/x
  3. Step 3: Cross multiply
    262,491.75x = 393,943.50 × 393,943.50
  4. Step 4: Simplify right side
    262,491.75x = 155,191,481,192.25
  5. Step 5: Solve for x
    x = 155,191,481,192.25/262,491.75
  6. Step 6: Final answer
    x = 591,224.22

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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.