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Finding the Fourth Proportional to 531.92, 734 and 299.04

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Solution

The fourth proportional to 531.92, 734 and 299.04 is: 412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.92 : 734 = 299.04 : x
  2. Step 2: Convert to fraction form
    531.92/734 = 299.04/x
  3. Step 3: Cross multiply
    531.92x = 734 × 299.04
  4. Step 4: Simplify right side
    531.92x = 219,495.36
  5. Step 5: Solve for x
    x = 219,495.36/531.92
  6. Step 6: Final answer
    x = 412.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.