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Finding the Fourth Proportional to 937.96, 1,410.18 and 866.68

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Solution

The fourth proportional to 937.96, 1,410.18 and 866.68 is: 1,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.96 : 1,410.18 = 866.68 : x
  2. Step 2: Convert to fraction form
    937.96/1,410.18 = 866.68/x
  3. Step 3: Cross multiply
    937.96x = 1,410.18 × 866.68
  4. Step 4: Simplify right side
    937.96x = 1,222,174.80
  5. Step 5: Solve for x
    x = 1,222,174.80/937.96
  6. Step 6: Final answer
    x = 1,303.01

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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.