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Finding the Fourth Proportional to 1,166.36, 1,608.50 and 793.76

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Solution

The fourth proportional to 1,166.36, 1,608.50 and 793.76 is: 1,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.36 : 1,608.50 = 793.76 : x
  2. Step 2: Convert to fraction form
    1,166.36/1,608.50 = 793.76/x
  3. Step 3: Cross multiply
    1,166.36x = 1,608.50 × 793.76
  4. Step 4: Simplify right side
    1,166.36x = 1,276,762.96
  5. Step 5: Solve for x
    x = 1,276,762.96/1,166.36
  6. Step 6: Final answer
    x = 1,094.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.