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Finding the Fourth Proportional to 468,704.72, 646,812.32 and 253,844.79

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Solution

The fourth proportional to 468,704.72, 646,812.32 and 253,844.79 is: 350,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,704.72 : 646,812.32 = 253,844.79 : x
  2. Step 2: Convert to fraction form
    468,704.72/646,812.32 = 253,844.79/x
  3. Step 3: Cross multiply
    468,704.72x = 646,812.32 × 253,844.79
  4. Step 4: Simplify right side
    468,704.72x = 164,189,936,270.59
  5. Step 5: Solve for x
    x = 164,189,936,270.59/468,704.72
  6. Step 6: Final answer
    x = 350,305.71

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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.