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Finding the Fourth Proportional to 481,334.49, 664,246.89 and 266,478.12

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Solution

The fourth proportional to 481,334.49, 664,246.89 and 266,478.12 is: 367,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,334.49 : 664,246.89 = 266,478.12 : x
  2. Step 2: Convert to fraction form
    481,334.49/664,246.89 = 266,478.12/x
  3. Step 3: Cross multiply
    481,334.49x = 664,246.89 × 266,478.12
  4. Step 4: Simplify right side
    481,334.49x = 177,007,262,463.05
  5. Step 5: Solve for x
    x = 177,007,262,463.05/481,334.49
  6. Step 6: Final answer
    x = 367,742.74

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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.