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Finding the Fourth Proportional to 958.14, 1,322.20 and 544.14

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Solution

The fourth proportional to 958.14, 1,322.20 and 544.14 is: 750.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.14 : 1,322.20 = 544.14 : x
  2. Step 2: Convert to fraction form
    958.14/1,322.20 = 544.14/x
  3. Step 3: Cross multiply
    958.14x = 1,322.20 × 544.14
  4. Step 4: Simplify right side
    958.14x = 719,461.91
  5. Step 5: Solve for x
    x = 719,461.91/958.14
  6. Step 6: Final answer
    x = 750.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.