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Finding the Fourth Proportional to 722.94, 992.43 and 704.82

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Solution

The fourth proportional to 722.94, 992.43 and 704.82 is: 967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.94 : 992.43 = 704.82 : x
  2. Step 2: Convert to fraction form
    722.94/992.43 = 704.82/x
  3. Step 3: Cross multiply
    722.94x = 992.43 × 704.82
  4. Step 4: Simplify right side
    722.94x = 699,484.51
  5. Step 5: Solve for x
    x = 699,484.51/722.94
  6. Step 6: Final answer
    x = 967.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.