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Finding the Fourth Proportional to 352,809.29, 528,524.96 and 281,879.48

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Solution

The fourth proportional to 352,809.29, 528,524.96 and 281,879.48 is: 422,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,809.29 : 528,524.96 = 281,879.48 : x
  2. Step 2: Convert to fraction form
    352,809.29/528,524.96 = 281,879.48/x
  3. Step 3: Cross multiply
    352,809.29x = 528,524.96 × 281,879.48
  4. Step 4: Simplify right side
    352,809.29x = 148,980,336,839.80
  5. Step 5: Solve for x
    x = 148,980,336,839.80/352,809.29
  6. Step 6: Final answer
    x = 422,268.75

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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.