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Finding the Fourth Proportional to 923.44, 1,271.10 and 835.96

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Solution

The fourth proportional to 923.44, 1,271.10 and 835.96 is: 1,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.44 : 1,271.10 = 835.96 : x
  2. Step 2: Convert to fraction form
    923.44/1,271.10 = 835.96/x
  3. Step 3: Cross multiply
    923.44x = 1,271.10 × 835.96
  4. Step 4: Simplify right side
    923.44x = 1,062,588.76
  5. Step 5: Solve for x
    x = 1,062,588.76/923.44
  6. Step 6: Final answer
    x = 1,150.69

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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.