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Finding the Fourth Proportional to 746.56, 1,035.76 and 716.48

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Solution

The fourth proportional to 746.56, 1,035.76 and 716.48 is: 994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.56 : 1,035.76 = 716.48 : x
  2. Step 2: Convert to fraction form
    746.56/1,035.76 = 716.48/x
  3. Step 3: Cross multiply
    746.56x = 1,035.76 × 716.48
  4. Step 4: Simplify right side
    746.56x = 742,101.32
  5. Step 5: Solve for x
    x = 742,101.32/746.56
  6. Step 6: Final answer
    x = 994.03

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.