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Finding the Fourth Proportional to 481,257.99, 664,127.91 and 266,393.43

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Solution

The fourth proportional to 481,257.99, 664,127.91 and 266,393.43 is: 367,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,257.99 : 664,127.91 = 266,393.43 : x
  2. Step 2: Convert to fraction form
    481,257.99/664,127.91 = 266,393.43/x
  3. Step 3: Cross multiply
    481,257.99x = 664,127.91 × 266,393.43
  4. Step 4: Simplify right side
    481,257.99x = 176,919,311,903.63
  5. Step 5: Solve for x
    x = 176,919,311,903.63/481,257.99
  6. Step 6: Final answer
    x = 367,618.44

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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.