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Finding the Fourth Proportional to 794.51, 1,096.43 and 440.45

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Solution

The fourth proportional to 794.51, 1,096.43 and 440.45 is: 607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.51 : 1,096.43 = 440.45 : x
  2. Step 2: Convert to fraction form
    794.51/1,096.43 = 440.45/x
  3. Step 3: Cross multiply
    794.51x = 1,096.43 × 440.45
  4. Step 4: Simplify right side
    794.51x = 482,920.39
  5. Step 5: Solve for x
    x = 482,920.39/794.51
  6. Step 6: Final answer
    x = 607.82

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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.