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Finding the Fourth Proportional to 322,879.53, 484,314.44 and 145,261.11

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Solution

The fourth proportional to 322,879.53, 484,314.44 and 145,261.11 is: 217,889.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,879.53 : 484,314.44 = 145,261.11 : x
  2. Step 2: Convert to fraction form
    322,879.53/484,314.44 = 145,261.11/x
  3. Step 3: Cross multiply
    322,879.53x = 484,314.44 × 145,261.11
  4. Step 4: Simplify right side
    322,879.53x = 70,352,052,417.12
  5. Step 5: Solve for x
    x = 70,352,052,417.12/322,879.53
  6. Step 6: Final answer
    x = 217,889.48

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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.