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Finding the Fourth Proportional to 996.01, 1,494.04 and 557.01

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Solution

The fourth proportional to 996.01, 1,494.04 and 557.01 is: 835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.01 : 1,494.04 = 557.01 : x
  2. Step 2: Convert to fraction form
    996.01/1,494.04 = 557.01/x
  3. Step 3: Cross multiply
    996.01x = 1,494.04 × 557.01
  4. Step 4: Simplify right side
    996.01x = 832,195.22
  5. Step 5: Solve for x
    x = 832,195.22/996.01
  6. Step 6: Final answer
    x = 835.53

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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.