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Finding the Fourth Proportional to 1,110.83, 1,532.93 and 613.44

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Solution

The fourth proportional to 1,110.83, 1,532.93 and 613.44 is: 846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.83 : 1,532.93 = 613.44 : x
  2. Step 2: Convert to fraction form
    1,110.83/1,532.93 = 613.44/x
  3. Step 3: Cross multiply
    1,110.83x = 1,532.93 × 613.44
  4. Step 4: Simplify right side
    1,110.83x = 940,357.51
  5. Step 5: Solve for x
    x = 940,357.51/1,110.83
  6. Step 6: Final answer
    x = 846.54

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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.