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Finding the Fourth Proportional to 794.22, 1,095.50 and 499.24

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Solution

The fourth proportional to 794.22, 1,095.50 and 499.24 is: 688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.22 : 1,095.50 = 499.24 : x
  2. Step 2: Convert to fraction form
    794.22/1,095.50 = 499.24/x
  3. Step 3: Cross multiply
    794.22x = 1,095.50 × 499.24
  4. Step 4: Simplify right side
    794.22x = 546,917.42
  5. Step 5: Solve for x
    x = 546,917.42/794.22
  6. Step 6: Final answer
    x = 688.62

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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.