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Finding the Fourth Proportional to 498.84, 748.28 and 293

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Solution

The fourth proportional to 498.84, 748.28 and 293 is: 439.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.84 : 748.28 = 293 : x
  2. Step 2: Convert to fraction form
    498.84/748.28 = 293/x
  3. Step 3: Cross multiply
    498.84x = 748.28 × 293
  4. Step 4: Simplify right side
    498.84x = 219,246.04
  5. Step 5: Solve for x
    x = 219,246.04/498.84
  6. Step 6: Final answer
    x = 439.51

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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.