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Finding the Fourth Proportional to 481,406.49, 664,346.21 and 266,550.48

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Solution

The fourth proportional to 481,406.49, 664,346.21 and 266,550.48 is: 367,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,406.49 : 664,346.21 = 266,550.48 : x
  2. Step 2: Convert to fraction form
    481,406.49/664,346.21 = 266,550.48/x
  3. Step 3: Cross multiply
    481,406.49x = 664,346.21 × 266,550.48
  4. Step 4: Simplify right side
    481,406.49x = 177,081,799,828.93
  5. Step 5: Solve for x
    x = 177,081,799,828.93/481,406.49
  6. Step 6: Final answer
    x = 367,842.57

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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.