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Finding the Fourth Proportional to 624.11, 936.26 and 234.09

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Solution

The fourth proportional to 624.11, 936.26 and 234.09 is: 351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.11 : 936.26 = 234.09 : x
  2. Step 2: Convert to fraction form
    624.11/936.26 = 234.09/x
  3. Step 3: Cross multiply
    624.11x = 936.26 × 234.09
  4. Step 4: Simplify right side
    624.11x = 219,167.93
  5. Step 5: Solve for x
    x = 219,167.93/624.11
  6. Step 6: Final answer
    x = 351.17

Related Problems

Find fourth proportional to 312.05, 468.13 and 117.05
Half scale
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Double scale
Find fourth proportional to 625.11, 937.76 and 235.09
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.