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Finding the Fourth Proportional to 492,791.56, 680,052.24 and 277,931.16

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Solution

The fourth proportional to 492,791.56, 680,052.24 and 277,931.16 is: 383,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,791.56 : 680,052.24 = 277,931.16 : x
  2. Step 2: Convert to fraction form
    492,791.56/680,052.24 = 277,931.16/x
  3. Step 3: Cross multiply
    492,791.56x = 680,052.24 × 277,931.16
  4. Step 4: Simplify right side
    492,791.56x = 189,007,707,923.80
  5. Step 5: Solve for x
    x = 189,007,707,923.80/492,791.56
  6. Step 6: Final answer
    x = 383,544.94

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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.