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Finding the Fourth Proportional to 1,196.96, 1,795.44 and 708.53

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Solution

The fourth proportional to 1,196.96, 1,795.44 and 708.53 is: 1,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.96 : 1,795.44 = 708.53 : x
  2. Step 2: Convert to fraction form
    1,196.96/1,795.44 = 708.53/x
  3. Step 3: Cross multiply
    1,196.96x = 1,795.44 × 708.53
  4. Step 4: Simplify right side
    1,196.96x = 1,272,114.13
  5. Step 5: Solve for x
    x = 1,272,114.13/1,196.96
  6. Step 6: Final answer
    x = 1,062.79

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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.