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Finding the Fourth Proportional to 481,396.22, 664,347.54 and 266,536.28

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Solution

The fourth proportional to 481,396.22, 664,347.54 and 266,536.28 is: 367,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,396.22 : 664,347.54 = 266,536.28 : x
  2. Step 2: Convert to fraction form
    481,396.22/664,347.54 = 266,536.28/x
  3. Step 3: Cross multiply
    481,396.22x = 664,347.54 × 266,536.28
  4. Step 4: Simplify right side
    481,396.22x = 177,072,718,617.01
  5. Step 5: Solve for x
    x = 177,072,718,617.01/481,396.22
  6. Step 6: Final answer
    x = 367,831.56

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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.