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Finding the Fourth Proportional to 1,496.76, 2,243.80 and 716.28

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Solution

The fourth proportional to 1,496.76, 2,243.80 and 716.28 is: 1,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.76 : 2,243.80 = 716.28 : x
  2. Step 2: Convert to fraction form
    1,496.76/2,243.80 = 716.28/x
  3. Step 3: Cross multiply
    1,496.76x = 2,243.80 × 716.28
  4. Step 4: Simplify right side
    1,496.76x = 1,607,189.06
  5. Step 5: Solve for x
    x = 1,607,189.06/1,496.76
  6. Step 6: Final answer
    x = 1,073.78

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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.