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Finding the Fourth Proportional to 792.06, 1,093.68 and 497.76

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Solution

The fourth proportional to 792.06, 1,093.68 and 497.76 is: 687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.06 : 1,093.68 = 497.76 : x
  2. Step 2: Convert to fraction form
    792.06/1,093.68 = 497.76/x
  3. Step 3: Cross multiply
    792.06x = 1,093.68 × 497.76
  4. Step 4: Simplify right side
    792.06x = 544,390.16
  5. Step 5: Solve for x
    x = 544,390.16/792.06
  6. Step 6: Final answer
    x = 687.31

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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.