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Finding the Fourth Proportional to 719.52, 1,079.04 and 232.44

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Solution

The fourth proportional to 719.52, 1,079.04 and 232.44 is: 348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.52 : 1,079.04 = 232.44 : x
  2. Step 2: Convert to fraction form
    719.52/1,079.04 = 232.44/x
  3. Step 3: Cross multiply
    719.52x = 1,079.04 × 232.44
  4. Step 4: Simplify right side
    719.52x = 250,812.06
  5. Step 5: Solve for x
    x = 250,812.06/719.52
  6. Step 6: Final answer
    x = 348.58

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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.