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Finding the Fourth Proportional to 481,401.63, 664,344.63 and 263,619.50

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Solution

The fourth proportional to 481,401.63, 664,344.63 and 263,619.50 is: 363,800.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,401.63 : 664,344.63 = 263,619.50 : x
  2. Step 2: Convert to fraction form
    481,401.63/664,344.63 = 263,619.50/x
  3. Step 3: Cross multiply
    481,401.63x = 664,344.63 × 263,619.50
  4. Step 4: Simplify right side
    481,401.63x = 175,134,195,866.56
  5. Step 5: Solve for x
    x = 175,134,195,866.56/481,401.63
  6. Step 6: Final answer
    x = 363,800.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.