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Finding the Fourth Proportional to 3,305.89, 4,959.63 and 965.94

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Solution

The fourth proportional to 3,305.89, 4,959.63 and 965.94 is: 1,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,305.89 : 4,959.63 = 965.94 : x
  2. Step 2: Convert to fraction form
    3,305.89/4,959.63 = 965.94/x
  3. Step 3: Cross multiply
    3,305.89x = 4,959.63 × 965.94
  4. Step 4: Simplify right side
    3,305.89x = 4,790,686.40
  5. Step 5: Solve for x
    x = 4,790,686.40/3,305.89
  6. Step 6: Final answer
    x = 1,449.14

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1.5x scale

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.