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Finding the Fourth Proportional to 321,174.30, 481,569.45 and 196,604.70

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Solution

The fourth proportional to 321,174.30, 481,569.45 and 196,604.70 is: 294,789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,174.30 : 481,569.45 = 196,604.70 : x
  2. Step 2: Convert to fraction form
    321,174.30/481,569.45 = 196,604.70/x
  3. Step 3: Cross multiply
    321,174.30x = 481,569.45 × 196,604.70
  4. Step 4: Simplify right side
    321,174.30x = 94,678,817,246.42
  5. Step 5: Solve for x
    x = 94,678,817,246.42/321,174.30
  6. Step 6: Final answer
    x = 294,789.52

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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.