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Finding the Fourth Proportional to 716.07, 1,073.90 and 196.09

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Solution

The fourth proportional to 716.07, 1,073.90 and 196.09 is: 294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.07 : 1,073.90 = 196.09 : x
  2. Step 2: Convert to fraction form
    716.07/1,073.90 = 196.09/x
  3. Step 3: Cross multiply
    716.07x = 1,073.90 × 196.09
  4. Step 4: Simplify right side
    716.07x = 210,580.83
  5. Step 5: Solve for x
    x = 210,580.83/716.07
  6. Step 6: Final answer
    x = 294.08

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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.