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Finding the Fourth Proportional to 322,051.68, 480,908.88 and 263,004.48

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Solution

The fourth proportional to 322,051.68, 480,908.88 and 263,004.48 is: 392,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,051.68 : 480,908.88 = 263,004.48 : x
  2. Step 2: Convert to fraction form
    322,051.68/480,908.88 = 263,004.48/x
  3. Step 3: Cross multiply
    322,051.68x = 480,908.88 × 263,004.48
  4. Step 4: Simplify right side
    322,051.68x = 126,481,189,911.78
  5. Step 5: Solve for x
    x = 126,481,189,911.78/322,051.68
  6. Step 6: Final answer
    x = 392,735.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.