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Finding the Fourth Proportional to 932.22, 1,395.84 and 492.57

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Solution

The fourth proportional to 932.22, 1,395.84 and 492.57 is: 737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.22 : 1,395.84 = 492.57 : x
  2. Step 2: Convert to fraction form
    932.22/1,395.84 = 492.57/x
  3. Step 3: Cross multiply
    932.22x = 1,395.84 × 492.57
  4. Step 4: Simplify right side
    932.22x = 687,541.93
  5. Step 5: Solve for x
    x = 687,541.93/932.22
  6. Step 6: Final answer
    x = 737.53

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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.