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Finding the Fourth Proportional to 532.16, 798.48 and 239.68

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Solution

The fourth proportional to 532.16, 798.48 and 239.68 is: 359.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.16 : 798.48 = 239.68 : x
  2. Step 2: Convert to fraction form
    532.16/798.48 = 239.68/x
  3. Step 3: Cross multiply
    532.16x = 798.48 × 239.68
  4. Step 4: Simplify right side
    532.16x = 191,379.69
  5. Step 5: Solve for x
    x = 191,379.69/532.16
  6. Step 6: Final answer
    x = 359.63

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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.