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Finding the Fourth Proportional to 532.19, 798.24 and 147.44

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Solution

The fourth proportional to 532.19, 798.24 and 147.44 is: 221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.19 : 798.24 = 147.44 : x
  2. Step 2: Convert to fraction form
    532.19/798.24 = 147.44/x
  3. Step 3: Cross multiply
    532.19x = 798.24 × 147.44
  4. Step 4: Simplify right side
    532.19x = 117,692.51
  5. Step 5: Solve for x
    x = 117,692.51/532.19
  6. Step 6: Final answer
    x = 221.15

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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.