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Finding the Fourth Proportional to 500,754.98, 690,664.92 and 347,793.37

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Solution

The fourth proportional to 500,754.98, 690,664.92 and 347,793.37 is: 479,693.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,754.98 : 690,664.92 = 347,793.37 : x
  2. Step 2: Convert to fraction form
    500,754.98/690,664.92 = 347,793.37/x
  3. Step 3: Cross multiply
    500,754.98x = 690,664.92 × 347,793.37
  4. Step 4: Simplify right side
    500,754.98x = 240,208,680,067.58
  5. Step 5: Solve for x
    x = 240,208,680,067.58/500,754.98
  6. Step 6: Final answer
    x = 479,693.04

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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.