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Finding the Fourth Proportional to 995.98, 1,492.38 and 841.18

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Solution

The fourth proportional to 995.98, 1,492.38 and 841.18 is: 1,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.98 : 1,492.38 = 841.18 : x
  2. Step 2: Convert to fraction form
    995.98/1,492.38 = 841.18/x
  3. Step 3: Cross multiply
    995.98x = 1,492.38 × 841.18
  4. Step 4: Simplify right side
    995.98x = 1,255,352.75
  5. Step 5: Solve for x
    x = 1,255,352.75/995.98
  6. Step 6: Final answer
    x = 1,260.43

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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.