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Finding the Fourth Proportional to 998.54, 1,495.83 and 793.46

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Solution

The fourth proportional to 998.54, 1,495.83 and 793.46 is: 1,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.54 : 1,495.83 = 793.46 : x
  2. Step 2: Convert to fraction form
    998.54/1,495.83 = 793.46/x
  3. Step 3: Cross multiply
    998.54x = 1,495.83 × 793.46
  4. Step 4: Simplify right side
    998.54x = 1,186,881.27
  5. Step 5: Solve for x
    x = 1,186,881.27/998.54
  6. Step 6: Final answer
    x = 1,188.62

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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.