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Finding the Fourth Proportional to 995.52, 1,494 and 556.32

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Solution

The fourth proportional to 995.52, 1,494 and 556.32 is: 834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.52 : 1,494 = 556.32 : x
  2. Step 2: Convert to fraction form
    995.52/1,494 = 556.32/x
  3. Step 3: Cross multiply
    995.52x = 1,494 × 556.32
  4. Step 4: Simplify right side
    995.52x = 831,142.08
  5. Step 5: Solve for x
    x = 831,142.08/995.52
  6. Step 6: Final answer
    x = 834.88

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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.