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Finding the Fourth Proportional to 1,196.07, 1,793.90 and 330.38

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Solution

The fourth proportional to 1,196.07, 1,793.90 and 330.38 is: 495.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.07 : 1,793.90 = 330.38 : x
  2. Step 2: Convert to fraction form
    1,196.07/1,793.90 = 330.38/x
  3. Step 3: Cross multiply
    1,196.07x = 1,793.90 × 330.38
  4. Step 4: Simplify right side
    1,196.07x = 592,673.99
  5. Step 5: Solve for x
    x = 592,673.99/1,196.07
  6. Step 6: Final answer
    x = 495.52

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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.