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Finding the Fourth Proportional to 322,076.56, 480,945.95 and 263,029.36

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Solution

The fourth proportional to 322,076.56, 480,945.95 and 263,029.36 is: 392,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,076.56 : 480,945.95 = 263,029.36 : x
  2. Step 2: Convert to fraction form
    322,076.56/480,945.95 = 263,029.36/x
  3. Step 3: Cross multiply
    322,076.56x = 480,945.95 × 263,029.36
  4. Step 4: Simplify right side
    322,076.56x = 126,502,901,703.22
  5. Step 5: Solve for x
    x = 126,502,901,703.22/322,076.56
  6. Step 6: Final answer
    x = 392,772.77

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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.