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Finding the Fourth Proportional to 995.84, 1,492.86 and 475.52

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Solution

The fourth proportional to 995.84, 1,492.86 and 475.52 is: 712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.84 : 1,492.86 = 475.52 : x
  2. Step 2: Convert to fraction form
    995.84/1,492.86 = 475.52/x
  3. Step 3: Cross multiply
    995.84x = 1,492.86 × 475.52
  4. Step 4: Simplify right side
    995.84x = 709,884.79
  5. Step 5: Solve for x
    x = 709,884.79/995.84
  6. Step 6: Final answer
    x = 712.85

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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.