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Finding the Fourth Proportional to 729.92, 1,094.56 and 364.88

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Solution

The fourth proportional to 729.92, 1,094.56 and 364.88 is: 547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    729.92 : 1,094.56 = 364.88 : x
  2. Step 2: Convert to fraction form
    729.92/1,094.56 = 364.88/x
  3. Step 3: Cross multiply
    729.92x = 1,094.56 × 364.88
  4. Step 4: Simplify right side
    729.92x = 399,383.05
  5. Step 5: Solve for x
    x = 399,383.05/729.92
  6. Step 6: Final answer
    x = 547.16

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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.