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Finding the Fourth Proportional to 732.27, 1,007.74 and 673.55

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Solution

The fourth proportional to 732.27, 1,007.74 and 673.55 is: 926.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.27 : 1,007.74 = 673.55 : x
  2. Step 2: Convert to fraction form
    732.27/1,007.74 = 673.55/x
  3. Step 3: Cross multiply
    732.27x = 1,007.74 × 673.55
  4. Step 4: Simplify right side
    732.27x = 678,762.86
  5. Step 5: Solve for x
    x = 678,762.86/732.27
  6. Step 6: Final answer
    x = 926.93

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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.