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Finding the Fourth Proportional to 996.59, 1,494.86 and 347.33

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Solution

The fourth proportional to 996.59, 1,494.86 and 347.33 is: 520.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.59 : 1,494.86 = 347.33 : x
  2. Step 2: Convert to fraction form
    996.59/1,494.86 = 347.33/x
  3. Step 3: Cross multiply
    996.59x = 1,494.86 × 347.33
  4. Step 4: Simplify right side
    996.59x = 519,214.33
  5. Step 5: Solve for x
    x = 519,214.33/996.59
  6. Step 6: Final answer
    x = 520.99

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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.