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Finding the Fourth Proportional to 481,696.52, 664,732.28 and 266,831.88

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Solution

The fourth proportional to 481,696.52, 664,732.28 and 266,831.88 is: 368,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,696.52 : 664,732.28 = 266,831.88 : x
  2. Step 2: Convert to fraction form
    481,696.52/664,732.28 = 266,831.88/x
  3. Step 3: Cross multiply
    481,696.52x = 664,732.28 × 266,831.88
  4. Step 4: Simplify right side
    481,696.52x = 177,371,763,969.09
  5. Step 5: Solve for x
    x = 177,371,763,969.09/481,696.52
  6. Step 6: Final answer
    x = 368,223.05

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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.