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Finding the Fourth Proportional to 505,879.38, 698,439.06 and 324,669.42

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Solution

The fourth proportional to 505,879.38, 698,439.06 and 324,669.42 is: 448,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,879.38 : 698,439.06 = 324,669.42 : x
  2. Step 2: Convert to fraction form
    505,879.38/698,439.06 = 324,669.42/x
  3. Step 3: Cross multiply
    505,879.38x = 698,439.06 × 324,669.42
  4. Step 4: Simplify right side
    505,879.38x = 226,761,804,515.55
  5. Step 5: Solve for x
    x = 226,761,804,515.55/505,879.38
  6. Step 6: Final answer
    x = 448,252.71

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1.5x scale

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.