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Finding the Fourth Proportional to 1,196.32, 1,794.28 and 330.63

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Solution

The fourth proportional to 1,196.32, 1,794.28 and 330.63 is: 495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.32 : 1,794.28 = 330.63 : x
  2. Step 2: Convert to fraction form
    1,196.32/1,794.28 = 330.63/x
  3. Step 3: Cross multiply
    1,196.32x = 1,794.28 × 330.63
  4. Step 4: Simplify right side
    1,196.32x = 593,242.80
  5. Step 5: Solve for x
    x = 593,242.80/1,196.32
  6. Step 6: Final answer
    x = 495.89

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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.