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Finding the Fourth Proportional to 995.41, 1,493.48 and 346.33

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Solution

The fourth proportional to 995.41, 1,493.48 and 346.33 is: 519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.41 : 1,493.48 = 346.33 : x
  2. Step 2: Convert to fraction form
    995.41/1,493.48 = 346.33/x
  3. Step 3: Cross multiply
    995.41x = 1,493.48 × 346.33
  4. Step 4: Simplify right side
    995.41x = 517,236.93
  5. Step 5: Solve for x
    x = 517,236.93/995.41
  6. Step 6: Final answer
    x = 519.62

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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.