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Finding the Fourth Proportional to 512,968.65, 769,451.70 and 481,755.50

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Solution

The fourth proportional to 512,968.65, 769,451.70 and 481,755.50 is: 722,632.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,968.65 : 769,451.70 = 481,755.50 : x
  2. Step 2: Convert to fraction form
    512,968.65/769,451.70 = 481,755.50/x
  3. Step 3: Cross multiply
    512,968.65x = 769,451.70 × 481,755.50
  4. Step 4: Simplify right side
    512,968.65x = 370,687,589,304.12
  5. Step 5: Solve for x
    x = 370,687,589,304.12/512,968.65
  6. Step 6: Final answer
    x = 722,632.06

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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.