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Finding the Fourth Proportional to 481,321.86, 664,203.24 and 266,449.11

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Solution

The fourth proportional to 481,321.86, 664,203.24 and 266,449.11 is: 367,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,321.86 : 664,203.24 = 266,449.11 : x
  2. Step 2: Convert to fraction form
    481,321.86/664,203.24 = 266,449.11/x
  3. Step 3: Cross multiply
    481,321.86x = 664,203.24 × 266,449.11
  4. Step 4: Simplify right side
    481,321.86x = 176,976,362,157.12
  5. Step 5: Solve for x
    x = 176,976,362,157.12/481,321.86
  6. Step 6: Final answer
    x = 367,688.19

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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.