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Finding the Fourth Proportional to 1,196.96, 1,795 and 416.76

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Solution

The fourth proportional to 1,196.96, 1,795 and 416.76 is: 624.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.96 : 1,795 = 416.76 : x
  2. Step 2: Convert to fraction form
    1,196.96/1,795 = 416.76/x
  3. Step 3: Cross multiply
    1,196.96x = 1,795 × 416.76
  4. Step 4: Simplify right side
    1,196.96x = 748,084.20
  5. Step 5: Solve for x
    x = 748,084.20/1,196.96
  6. Step 6: Final answer
    x = 624.99

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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.