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Finding the Fourth Proportional to 481,434.70, 664,372.11 and 266,574.10

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Solution

The fourth proportional to 481,434.70, 664,372.11 and 266,574.10 is: 367,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,434.70 : 664,372.11 = 266,574.10 : x
  2. Step 2: Convert to fraction form
    481,434.70/664,372.11 = 266,574.10/x
  3. Step 3: Cross multiply
    481,434.70x = 664,372.11 × 266,574.10
  4. Step 4: Simplify right side
    481,434.70x = 177,104,397,288.35
  5. Step 5: Solve for x
    x = 177,104,397,288.35/481,434.70
  6. Step 6: Final answer
    x = 367,867.95

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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.