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Finding the Fourth Proportional to 968.96, 1,453.60 and 552.48

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Solution

The fourth proportional to 968.96, 1,453.60 and 552.48 is: 828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.96 : 1,453.60 = 552.48 : x
  2. Step 2: Convert to fraction form
    968.96/1,453.60 = 552.48/x
  3. Step 3: Cross multiply
    968.96x = 1,453.60 × 552.48
  4. Step 4: Simplify right side
    968.96x = 803,084.93
  5. Step 5: Solve for x
    x = 803,084.93/968.96
  6. Step 6: Final answer
    x = 828.81

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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.