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Finding the Fourth Proportional to 956.18, 1,434.47 and 462.94

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Solution

The fourth proportional to 956.18, 1,434.47 and 462.94 is: 694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.18 : 1,434.47 = 462.94 : x
  2. Step 2: Convert to fraction form
    956.18/1,434.47 = 462.94/x
  3. Step 3: Cross multiply
    956.18x = 1,434.47 × 462.94
  4. Step 4: Simplify right side
    956.18x = 664,064.05
  5. Step 5: Solve for x
    x = 664,064.05/956.18
  6. Step 6: Final answer
    x = 694.50

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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.