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Finding the Fourth Proportional to 956.26, 1,433.94 and 436.24

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Solution

The fourth proportional to 956.26, 1,433.94 and 436.24 is: 654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.26 : 1,433.94 = 436.24 : x
  2. Step 2: Convert to fraction form
    956.26/1,433.94 = 436.24/x
  3. Step 3: Cross multiply
    956.26x = 1,433.94 × 436.24
  4. Step 4: Simplify right side
    956.26x = 625,541.99
  5. Step 5: Solve for x
    x = 625,541.99/956.26
  6. Step 6: Final answer
    x = 654.15

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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.