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Finding the Fourth Proportional to 579,806.52, 800,133.94 and 321,675.36

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Solution

The fourth proportional to 579,806.52, 800,133.94 and 321,675.36 is: 443,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,806.52 : 800,133.94 = 321,675.36 : x
  2. Step 2: Convert to fraction form
    579,806.52/800,133.94 = 321,675.36/x
  3. Step 3: Cross multiply
    579,806.52x = 800,133.94 × 321,675.36
  4. Step 4: Simplify right side
    579,806.52x = 257,383,373,197.72
  5. Step 5: Solve for x
    x = 257,383,373,197.72/579,806.52
  6. Step 6: Final answer
    x = 443,912.52

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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.