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Finding the Fourth Proportional to 416,626.88, 574,945.44 and 225,640.64

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Solution

The fourth proportional to 416,626.88, 574,945.44 and 225,640.64 is: 311,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,626.88 : 574,945.44 = 225,640.64 : x
  2. Step 2: Convert to fraction form
    416,626.88/574,945.44 = 225,640.64/x
  3. Step 3: Cross multiply
    416,626.88x = 574,945.44 × 225,640.64
  4. Step 4: Simplify right side
    416,626.88x = 129,731,057,046.68
  5. Step 5: Solve for x
    x = 129,731,057,046.68/416,626.88
  6. Step 6: Final answer
    x = 311,384.27

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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.