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Finding the Fourth Proportional to 792.54, 1,189.62 and 468

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Solution

The fourth proportional to 792.54, 1,189.62 and 468 is: 702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.54 : 1,189.62 = 468 : x
  2. Step 2: Convert to fraction form
    792.54/1,189.62 = 468/x
  3. Step 3: Cross multiply
    792.54x = 1,189.62 × 468
  4. Step 4: Simplify right side
    792.54x = 556,742.16
  5. Step 5: Solve for x
    x = 556,742.16/792.54
  6. Step 6: Final answer
    x = 702.48

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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.