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Finding the Fourth Proportional to 995.10, 1,493.09 and 346.30

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Solution

The fourth proportional to 995.10, 1,493.09 and 346.30 is: 519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.10 : 1,493.09 = 346.30 : x
  2. Step 2: Convert to fraction form
    995.10/1,493.09 = 346.30/x
  3. Step 3: Cross multiply
    995.10x = 1,493.09 × 346.30
  4. Step 4: Simplify right side
    995.10x = 517,057.07
  5. Step 5: Solve for x
    x = 517,057.07/995.10
  6. Step 6: Final answer
    x = 519.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.