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Finding the Fourth Proportional to 792.79, 1,094.16 and 443.50

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Solution

The fourth proportional to 792.79, 1,094.16 and 443.50 is: 612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.79 : 1,094.16 = 443.50 : x
  2. Step 2: Convert to fraction form
    792.79/1,094.16 = 443.50/x
  3. Step 3: Cross multiply
    792.79x = 1,094.16 × 443.50
  4. Step 4: Simplify right side
    792.79x = 485,259.96
  5. Step 5: Solve for x
    x = 485,259.96/792.79
  6. Step 6: Final answer
    x = 612.09

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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.