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Finding the Fourth Proportional to 1,593.12, 2,198.32 and 963.68

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Solution

The fourth proportional to 1,593.12, 2,198.32 and 963.68 is: 1,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.12 : 2,198.32 = 963.68 : x
  2. Step 2: Convert to fraction form
    1,593.12/2,198.32 = 963.68/x
  3. Step 3: Cross multiply
    1,593.12x = 2,198.32 × 963.68
  4. Step 4: Simplify right side
    1,593.12x = 2,118,477.02
  5. Step 5: Solve for x
    x = 2,118,477.02/1,593.12
  6. Step 6: Final answer
    x = 1,329.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.