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Finding the Fourth Proportional to 845.26, 1,166.37 and 472.25

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Solution

The fourth proportional to 845.26, 1,166.37 and 472.25 is: 651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.26 : 1,166.37 = 472.25 : x
  2. Step 2: Convert to fraction form
    845.26/1,166.37 = 472.25/x
  3. Step 3: Cross multiply
    845.26x = 1,166.37 × 472.25
  4. Step 4: Simplify right side
    845.26x = 550,819.38
  5. Step 5: Solve for x
    x = 550,819.38/845.26
  6. Step 6: Final answer
    x = 651.66

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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.