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Finding the Fourth Proportional to 1,591.10, 2,383.38 and 940.26

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Solution

The fourth proportional to 1,591.10, 2,383.38 and 940.26 is: 1,408.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.10 : 2,383.38 = 940.26 : x
  2. Step 2: Convert to fraction form
    1,591.10/2,383.38 = 940.26/x
  3. Step 3: Cross multiply
    1,591.10x = 2,383.38 × 940.26
  4. Step 4: Simplify right side
    1,591.10x = 2,240,996.88
  5. Step 5: Solve for x
    x = 2,240,996.88/1,591.10
  6. Step 6: Final answer
    x = 1,408.46

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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.