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Finding the Fourth Proportional to 481,162.52, 663,976.74 and 266,289.80

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Solution

The fourth proportional to 481,162.52, 663,976.74 and 266,289.80 is: 367,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,162.52 : 663,976.74 = 266,289.80 : x
  2. Step 2: Convert to fraction form
    481,162.52/663,976.74 = 266,289.80/x
  3. Step 3: Cross multiply
    481,162.52x = 663,976.74 × 266,289.80
  4. Step 4: Simplify right side
    481,162.52x = 176,810,233,299.25
  5. Step 5: Solve for x
    x = 176,810,233,299.25/481,162.52
  6. Step 6: Final answer
    x = 367,464.68

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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.