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Finding the Fourth Proportional to 953.76, 1,316.42 and 796.22

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Solution

The fourth proportional to 953.76, 1,316.42 and 796.22 is: 1,098.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.76 : 1,316.42 = 796.22 : x
  2. Step 2: Convert to fraction form
    953.76/1,316.42 = 796.22/x
  3. Step 3: Cross multiply
    953.76x = 1,316.42 × 796.22
  4. Step 4: Simplify right side
    953.76x = 1,048,159.93
  5. Step 5: Solve for x
    x = 1,048,159.93/953.76
  6. Step 6: Final answer
    x = 1,098.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.