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Finding the Fourth Proportional to 322,679.12, 483,243.51 and 180,174.20

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Solution

The fourth proportional to 322,679.12, 483,243.51 and 180,174.20 is: 269,828.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,679.12 : 483,243.51 = 180,174.20 : x
  2. Step 2: Convert to fraction form
    322,679.12/483,243.51 = 180,174.20/x
  3. Step 3: Cross multiply
    322,679.12x = 483,243.51 × 180,174.20
  4. Step 4: Simplify right side
    322,679.12x = 87,068,012,819.44
  5. Step 5: Solve for x
    x = 87,068,012,819.44/322,679.12
  6. Step 6: Final answer
    x = 269,828.47

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1.5x scale

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.