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Finding the Fourth Proportional to 956.41, 1,434.46 and 469.33

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Solution

The fourth proportional to 956.41, 1,434.46 and 469.33 is: 703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.41 : 1,434.46 = 469.33 : x
  2. Step 2: Convert to fraction form
    956.41/1,434.46 = 469.33/x
  3. Step 3: Cross multiply
    956.41x = 1,434.46 × 469.33
  4. Step 4: Simplify right side
    956.41x = 673,235.11
  5. Step 5: Solve for x
    x = 673,235.11/956.41
  6. Step 6: Final answer
    x = 703.92

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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.