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Finding the Fourth Proportional to 3,255.65, 4,883.44 and 790.48

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Solution

The fourth proportional to 3,255.65, 4,883.44 and 790.48 is: 1,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.65 : 4,883.44 = 790.48 : x
  2. Step 2: Convert to fraction form
    3,255.65/4,883.44 = 790.48/x
  3. Step 3: Cross multiply
    3,255.65x = 4,883.44 × 790.48
  4. Step 4: Simplify right side
    3,255.65x = 3,860,261.65
  5. Step 5: Solve for x
    x = 3,860,261.65/3,255.65
  6. Step 6: Final answer
    x = 1,185.71

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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.