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Finding the Fourth Proportional to 956.42, 1,434.54 and 591.26

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Solution

The fourth proportional to 956.42, 1,434.54 and 591.26 is: 886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.42 : 1,434.54 = 591.26 : x
  2. Step 2: Convert to fraction form
    956.42/1,434.54 = 591.26/x
  3. Step 3: Cross multiply
    956.42x = 1,434.54 × 591.26
  4. Step 4: Simplify right side
    956.42x = 848,186.12
  5. Step 5: Solve for x
    x = 848,186.12/956.42
  6. Step 6: Final answer
    x = 886.83

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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.