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Finding the Fourth Proportional to 532.74, 797.42 and 384.24

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Solution

The fourth proportional to 532.74, 797.42 and 384.24 is: 575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.74 : 797.42 = 384.24 : x
  2. Step 2: Convert to fraction form
    532.74/797.42 = 384.24/x
  3. Step 3: Cross multiply
    532.74x = 797.42 × 384.24
  4. Step 4: Simplify right side
    532.74x = 306,400.66
  5. Step 5: Solve for x
    x = 306,400.66/532.74
  6. Step 6: Final answer
    x = 575.14

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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.