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Finding the Fourth Proportional to 1,753.54, 2,629.20 and 984.58

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Solution

The fourth proportional to 1,753.54, 2,629.20 and 984.58 is: 1,476.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.54 : 2,629.20 = 984.58 : x
  2. Step 2: Convert to fraction form
    1,753.54/2,629.20 = 984.58/x
  3. Step 3: Cross multiply
    1,753.54x = 2,629.20 × 984.58
  4. Step 4: Simplify right side
    1,753.54x = 2,588,657.74
  5. Step 5: Solve for x
    x = 2,588,657.74/1,753.54
  6. Step 6: Final answer
    x = 1,476.25

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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.