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Finding the Fourth Proportional to 973.62, 1,344.06 and 694.44

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Solution

The fourth proportional to 973.62, 1,344.06 and 694.44 is: 958.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.62 : 1,344.06 = 694.44 : x
  2. Step 2: Convert to fraction form
    973.62/1,344.06 = 694.44/x
  3. Step 3: Cross multiply
    973.62x = 1,344.06 × 694.44
  4. Step 4: Simplify right side
    973.62x = 933,369.03
  5. Step 5: Solve for x
    x = 933,369.03/973.62
  6. Step 6: Final answer
    x = 958.66

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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.