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Finding the Fourth Proportional to 1,764.23, 2,644.03 and 984.60

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Solution

The fourth proportional to 1,764.23, 2,644.03 and 984.60 is: 1,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.23 : 2,644.03 = 984.60 : x
  2. Step 2: Convert to fraction form
    1,764.23/2,644.03 = 984.60/x
  3. Step 3: Cross multiply
    1,764.23x = 2,644.03 × 984.60
  4. Step 4: Simplify right side
    1,764.23x = 2,603,307.02
  5. Step 5: Solve for x
    x = 2,603,307.02/1,764.23
  6. Step 6: Final answer
    x = 1,475.61

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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.