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Finding the Fourth Proportional to 532.24, 798.78 and 349.60

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Solution

The fourth proportional to 532.24, 798.78 and 349.60 is: 524.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.24 : 798.78 = 349.60 : x
  2. Step 2: Convert to fraction form
    532.24/798.78 = 349.60/x
  3. Step 3: Cross multiply
    532.24x = 798.78 × 349.60
  4. Step 4: Simplify right side
    532.24x = 279,253.49
  5. Step 5: Solve for x
    x = 279,253.49/532.24
  6. Step 6: Final answer
    x = 524.68

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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.