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Finding the Fourth Proportional to 622.97, 934.59 and 190.16

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Solution

The fourth proportional to 622.97, 934.59 and 190.16 is: 285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.97 : 934.59 = 190.16 : x
  2. Step 2: Convert to fraction form
    622.97/934.59 = 190.16/x
  3. Step 3: Cross multiply
    622.97x = 934.59 × 190.16
  4. Step 4: Simplify right side
    622.97x = 177,721.63
  5. Step 5: Solve for x
    x = 177,721.63/622.97
  6. Step 6: Final answer
    x = 285.28

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Double scale
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Similar ratio
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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.