Home / 481,809.11-664,868.79-266,936.36

Finding the Fourth Proportional to 481,809.11, 664,868.79 and 266,936.36

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Solution

The fourth proportional to 481,809.11, 664,868.79 and 266,936.36 is: 368,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,809.11 : 664,868.79 = 266,936.36 : x
  2. Step 2: Convert to fraction form
    481,809.11/664,868.79 = 266,936.36/x
  3. Step 3: Cross multiply
    481,809.11x = 664,868.79 × 266,936.36
  4. Step 4: Simplify right side
    481,809.11x = 177,477,651,355.86
  5. Step 5: Solve for x
    x = 177,477,651,355.86/481,809.11
  6. Step 6: Final answer
    x = 368,356.78

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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.