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Finding the Fourth Proportional to 481,396.52, 664,347.95 and 266,536.58

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Solution

The fourth proportional to 481,396.52, 664,347.95 and 266,536.58 is: 367,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,396.52 : 664,347.95 = 266,536.58 : x
  2. Step 2: Convert to fraction form
    481,396.52/664,347.95 = 266,536.58/x
  3. Step 3: Cross multiply
    481,396.52x = 664,347.95 × 266,536.58
  4. Step 4: Simplify right side
    481,396.52x = 177,073,030,523.01
  5. Step 5: Solve for x
    x = 177,073,030,523.01/481,396.52
  6. Step 6: Final answer
    x = 367,831.97

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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.