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Finding the Fourth Proportional to 968.96, 1,451.92 and 945.44

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Solution

The fourth proportional to 968.96, 1,451.92 and 945.44 is: 1,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.96 : 1,451.92 = 945.44 : x
  2. Step 2: Convert to fraction form
    968.96/1,451.92 = 945.44/x
  3. Step 3: Cross multiply
    968.96x = 1,451.92 × 945.44
  4. Step 4: Simplify right side
    968.96x = 1,372,703.24
  5. Step 5: Solve for x
    x = 1,372,703.24/968.96
  6. Step 6: Final answer
    x = 1,416.68

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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.