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Finding the Fourth Proportional to 1,960.76, 2,941.25 and 790.58

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Solution

The fourth proportional to 1,960.76, 2,941.25 and 790.58 is: 1,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.76 : 2,941.25 = 790.58 : x
  2. Step 2: Convert to fraction form
    1,960.76/2,941.25 = 790.58/x
  3. Step 3: Cross multiply
    1,960.76x = 2,941.25 × 790.58
  4. Step 4: Simplify right side
    1,960.76x = 2,325,293.43
  5. Step 5: Solve for x
    x = 2,325,293.43/1,960.76
  6. Step 6: Final answer
    x = 1,185.91

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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.