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Finding the Fourth Proportional to 481,399.37, 664,351.88 and 266,539.43

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Solution

The fourth proportional to 481,399.37, 664,351.88 and 266,539.43 is: 367,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,399.37 : 664,351.88 = 266,539.43 : x
  2. Step 2: Convert to fraction form
    481,399.37/664,351.88 = 266,539.43/x
  3. Step 3: Cross multiply
    481,399.37x = 664,351.88 × 266,539.43
  4. Step 4: Simplify right side
    481,399.37x = 177,075,966,760.17
  5. Step 5: Solve for x
    x = 177,075,966,760.17/481,399.37
  6. Step 6: Final answer
    x = 367,835.90

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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.