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Finding the Fourth Proportional to 995.24, 1,492.85 and 482.60

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Solution

The fourth proportional to 995.24, 1,492.85 and 482.60 is: 723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.24 : 1,492.85 = 482.60 : x
  2. Step 2: Convert to fraction form
    995.24/1,492.85 = 482.60/x
  3. Step 3: Cross multiply
    995.24x = 1,492.85 × 482.60
  4. Step 4: Simplify right side
    995.24x = 720,443.15
  5. Step 5: Solve for x
    x = 720,443.15/995.24
  6. Step 6: Final answer
    x = 723.89

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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.