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Finding the Fourth Proportional to 953.37, 1,431.66 and 832.68

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Solution

The fourth proportional to 953.37, 1,431.66 and 832.68 is: 1,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.37 : 1,431.66 = 832.68 : x
  2. Step 2: Convert to fraction form
    953.37/1,431.66 = 832.68/x
  3. Step 3: Cross multiply
    953.37x = 1,431.66 × 832.68
  4. Step 4: Simplify right side
    953.37x = 1,192,114.65
  5. Step 5: Solve for x
    x = 1,192,114.65/953.37
  6. Step 6: Final answer
    x = 1,250.42

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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.