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Finding the Fourth Proportional to 265,183.57, 397,714.60 and 75,640.33

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Solution

The fourth proportional to 265,183.57, 397,714.60 and 75,640.33 is: 113,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,183.57 : 397,714.60 = 75,640.33 : x
  2. Step 2: Convert to fraction form
    265,183.57/397,714.60 = 75,640.33/x
  3. Step 3: Cross multiply
    265,183.57x = 397,714.60 × 75,640.33
  4. Step 4: Simplify right side
    265,183.57x = 30,083,261,223.04
  5. Step 5: Solve for x
    x = 30,083,261,223.04/265,183.57
  6. Step 6: Final answer
    x = 113,443.16

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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.