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Finding the Fourth Proportional to 1,306.73, 1,960.11 and 332.83

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Solution

The fourth proportional to 1,306.73, 1,960.11 and 332.83 is: 499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.73 : 1,960.11 = 332.83 : x
  2. Step 2: Convert to fraction form
    1,306.73/1,960.11 = 332.83/x
  3. Step 3: Cross multiply
    1,306.73x = 1,960.11 × 332.83
  4. Step 4: Simplify right side
    1,306.73x = 652,381.75
  5. Step 5: Solve for x
    x = 652,381.75/1,306.73
  6. Step 6: Final answer
    x = 499.25

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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.