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Finding the Fourth Proportional to 962.74, 1,334.16 and 944.28

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Solution

The fourth proportional to 962.74, 1,334.16 and 944.28 is: 1,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.74 : 1,334.16 = 944.28 : x
  2. Step 2: Convert to fraction form
    962.74/1,334.16 = 944.28/x
  3. Step 3: Cross multiply
    962.74x = 1,334.16 × 944.28
  4. Step 4: Simplify right side
    962.74x = 1,259,820.60
  5. Step 5: Solve for x
    x = 1,259,820.60/962.74
  6. Step 6: Final answer
    x = 1,308.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.