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Finding the Fourth Proportional to 1,194.90, 1,792.14 and 329

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Solution

The fourth proportional to 1,194.90, 1,792.14 and 329 is: 493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.90 : 1,792.14 = 329 : x
  2. Step 2: Convert to fraction form
    1,194.90/1,792.14 = 329/x
  3. Step 3: Cross multiply
    1,194.90x = 1,792.14 × 329
  4. Step 4: Simplify right side
    1,194.90x = 589,614.06
  5. Step 5: Solve for x
    x = 589,614.06/1,194.90
  6. Step 6: Final answer
    x = 493.44

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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.