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Finding the Fourth Proportional to 481,732.70, 664,831.95 and 266,940.14

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Solution

The fourth proportional to 481,732.70, 664,831.95 and 266,940.14 is: 368,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,732.70 : 664,831.95 = 266,940.14 : x
  2. Step 2: Convert to fraction form
    481,732.70/664,831.95 = 266,940.14/x
  3. Step 3: Cross multiply
    481,732.70x = 664,831.95 × 266,940.14
  4. Step 4: Simplify right side
    481,732.70x = 177,470,333,809.47
  5. Step 5: Solve for x
    x = 177,470,333,809.47/481,732.70
  6. Step 6: Final answer
    x = 368,400.01

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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.