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Finding the Fourth Proportional to 481,168.71, 663,954.57 and 277,286.45

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Solution

The fourth proportional to 481,168.71, 663,954.57 and 277,286.45 is: 382,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,168.71 : 663,954.57 = 277,286.45 : x
  2. Step 2: Convert to fraction form
    481,168.71/663,954.57 = 277,286.45/x
  3. Step 3: Cross multiply
    481,168.71x = 663,954.57 × 277,286.45
  4. Step 4: Simplify right side
    481,168.71x = 184,105,602,356.80
  5. Step 5: Solve for x
    x = 184,105,602,356.80/481,168.71
  6. Step 6: Final answer
    x = 382,621.73

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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.