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Finding the Fourth Proportional to 1,194.96, 1,792.43 and 819.34

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Solution

The fourth proportional to 1,194.96, 1,792.43 and 819.34 is: 1,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.96 : 1,792.43 = 819.34 : x
  2. Step 2: Convert to fraction form
    1,194.96/1,792.43 = 819.34/x
  3. Step 3: Cross multiply
    1,194.96x = 1,792.43 × 819.34
  4. Step 4: Simplify right side
    1,194.96x = 1,468,605.50
  5. Step 5: Solve for x
    x = 1,468,605.50/1,194.96
  6. Step 6: Final answer
    x = 1,229.00

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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.