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Finding the Fourth Proportional to 623.36, 935.04 and 190.46

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Solution

The fourth proportional to 623.36, 935.04 and 190.46 is: 285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.36 : 935.04 = 190.46 : x
  2. Step 2: Convert to fraction form
    623.36/935.04 = 190.46/x
  3. Step 3: Cross multiply
    623.36x = 935.04 × 190.46
  4. Step 4: Simplify right side
    623.36x = 178,087.72
  5. Step 5: Solve for x
    x = 178,087.72/623.36
  6. Step 6: Final answer
    x = 285.69

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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.