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Finding the Fourth Proportional to 481,395.97, 664,347.20 and 266,536.03

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Solution

The fourth proportional to 481,395.97, 664,347.20 and 266,536.03 is: 367,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,395.97 : 664,347.20 = 266,536.03 : x
  2. Step 2: Convert to fraction form
    481,395.97/664,347.20 = 266,536.03/x
  3. Step 3: Cross multiply
    481,395.97x = 664,347.20 × 266,536.03
  4. Step 4: Simplify right side
    481,395.97x = 177,072,460,575.20
  5. Step 5: Solve for x
    x = 177,072,460,575.20/481,395.97
  6. Step 6: Final answer
    x = 367,831.21

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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.