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Finding the Fourth Proportional to 494,644.80, 741,643.20 and 194,944.80

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Solution

The fourth proportional to 494,644.80, 741,643.20 and 194,944.80 is: 292,289.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,644.80 : 741,643.20 = 194,944.80 : x
  2. Step 2: Convert to fraction form
    494,644.80/741,643.20 = 194,944.80/x
  3. Step 3: Cross multiply
    494,644.80x = 741,643.20 × 194,944.80
  4. Step 4: Simplify right side
    494,644.80x = 144,579,485,295.36
  5. Step 5: Solve for x
    x = 144,579,485,295.36/494,644.80
  6. Step 6: Final answer
    x = 292,289.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.