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Finding the Fourth Proportional to 1,179.84, 1,768.08 and 529.44

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Solution

The fourth proportional to 1,179.84, 1,768.08 and 529.44 is: 793.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.84 : 1,768.08 = 529.44 : x
  2. Step 2: Convert to fraction form
    1,179.84/1,768.08 = 529.44/x
  3. Step 3: Cross multiply
    1,179.84x = 1,768.08 × 529.44
  4. Step 4: Simplify right side
    1,179.84x = 936,092.28
  5. Step 5: Solve for x
    x = 936,092.28/1,179.84
  6. Step 6: Final answer
    x = 793.41

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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.