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Finding the Fourth Proportional to 956.26, 1,435.83 and 835.30

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Solution

The fourth proportional to 956.26, 1,435.83 and 835.30 is: 1,254.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.26 : 1,435.83 = 835.30 : x
  2. Step 2: Convert to fraction form
    956.26/1,435.83 = 835.30/x
  3. Step 3: Cross multiply
    956.26x = 1,435.83 × 835.30
  4. Step 4: Simplify right side
    956.26x = 1,199,348.80
  5. Step 5: Solve for x
    x = 1,199,348.80/956.26
  6. Step 6: Final answer
    x = 1,254.21

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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.