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Finding the Fourth Proportional to 995.75, 1,493.22 and 556.94

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Solution

The fourth proportional to 995.75, 1,493.22 and 556.94 is: 835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.75 : 1,493.22 = 556.94 : x
  2. Step 2: Convert to fraction form
    995.75/1,493.22 = 556.94/x
  3. Step 3: Cross multiply
    995.75x = 1,493.22 × 556.94
  4. Step 4: Simplify right side
    995.75x = 831,633.95
  5. Step 5: Solve for x
    x = 831,633.95/995.75
  6. Step 6: Final answer
    x = 835.18

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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.