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Finding the Fourth Proportional to 995.84, 1,493.76 and 346.11

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Solution

The fourth proportional to 995.84, 1,493.76 and 346.11 is: 519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.84 : 1,493.76 = 346.11 : x
  2. Step 2: Convert to fraction form
    995.84/1,493.76 = 346.11/x
  3. Step 3: Cross multiply
    995.84x = 1,493.76 × 346.11
  4. Step 4: Simplify right side
    995.84x = 517,003.54
  5. Step 5: Solve for x
    x = 517,003.54/995.84
  6. Step 6: Final answer
    x = 519.17

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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.