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Finding the Fourth Proportional to 1,600.88, 2,208.96 and 892.58

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Solution

The fourth proportional to 1,600.88, 2,208.96 and 892.58 is: 1,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.88 : 2,208.96 = 892.58 : x
  2. Step 2: Convert to fraction form
    1,600.88/2,208.96 = 892.58/x
  3. Step 3: Cross multiply
    1,600.88x = 2,208.96 × 892.58
  4. Step 4: Simplify right side
    1,600.88x = 1,971,673.52
  5. Step 5: Solve for x
    x = 1,971,673.52/1,600.88
  6. Step 6: Final answer
    x = 1,231.62

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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.