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Finding the Fourth Proportional to 1,593.48, 2,198.98 and 885.32

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Solution

The fourth proportional to 1,593.48, 2,198.98 and 885.32 is: 1,221.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.48 : 2,198.98 = 885.32 : x
  2. Step 2: Convert to fraction form
    1,593.48/2,198.98 = 885.32/x
  3. Step 3: Cross multiply
    1,593.48x = 2,198.98 × 885.32
  4. Step 4: Simplify right side
    1,593.48x = 1,946,796.01
  5. Step 5: Solve for x
    x = 1,946,796.01/1,593.48
  6. Step 6: Final answer
    x = 1,221.72

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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.