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Finding the Fourth Proportional to 665.41, 998.57 and 232.57

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Solution

The fourth proportional to 665.41, 998.57 and 232.57 is: 349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.41 : 998.57 = 232.57 : x
  2. Step 2: Convert to fraction form
    665.41/998.57 = 232.57/x
  3. Step 3: Cross multiply
    665.41x = 998.57 × 232.57
  4. Step 4: Simplify right side
    665.41x = 232,236.26
  5. Step 5: Solve for x
    x = 232,236.26/665.41
  6. Step 6: Final answer
    x = 349.01

Related Problems

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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.