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Finding the Fourth Proportional to 1,166.37, 1,609.05 and 746.51

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Solution

The fourth proportional to 1,166.37, 1,609.05 and 746.51 is: 1,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.37 : 1,609.05 = 746.51 : x
  2. Step 2: Convert to fraction form
    1,166.37/1,609.05 = 746.51/x
  3. Step 3: Cross multiply
    1,166.37x = 1,609.05 × 746.51
  4. Step 4: Simplify right side
    1,166.37x = 1,201,167.00
  5. Step 5: Solve for x
    x = 1,201,167.00/1,166.37
  6. Step 6: Final answer
    x = 1,029.84

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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.