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Finding the Fourth Proportional to 792.59, 1,188.95 and 562.14

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Solution

The fourth proportional to 792.59, 1,188.95 and 562.14 is: 843.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.59 : 1,188.95 = 562.14 : x
  2. Step 2: Convert to fraction form
    792.59/1,188.95 = 562.14/x
  3. Step 3: Cross multiply
    792.59x = 1,188.95 × 562.14
  4. Step 4: Simplify right side
    792.59x = 668,353.54
  5. Step 5: Solve for x
    x = 668,353.54/792.59
  6. Step 6: Final answer
    x = 843.26

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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.