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Finding the Fourth Proportional to 467,672.54, 644,957.70 and 306,469.04

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Solution

The fourth proportional to 467,672.54, 644,957.70 and 306,469.04 is: 422,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,672.54 : 644,957.70 = 306,469.04 : x
  2. Step 2: Convert to fraction form
    467,672.54/644,957.70 = 306,469.04/x
  3. Step 3: Cross multiply
    467,672.54x = 644,957.70 × 306,469.04
  4. Step 4: Simplify right side
    467,672.54x = 197,659,563,934.82
  5. Step 5: Solve for x
    x = 197,659,563,934.82/467,672.54
  6. Step 6: Final answer
    x = 422,645.23

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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.