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Finding the Fourth Proportional to 996.94, 1,494.69 and 503.02

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Solution

The fourth proportional to 996.94, 1,494.69 and 503.02 is: 754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.94 : 1,494.69 = 503.02 : x
  2. Step 2: Convert to fraction form
    996.94/1,494.69 = 503.02/x
  3. Step 3: Cross multiply
    996.94x = 1,494.69 × 503.02
  4. Step 4: Simplify right side
    996.94x = 751,858.96
  5. Step 5: Solve for x
    x = 751,858.96/996.94
  6. Step 6: Final answer
    x = 754.17

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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.