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Finding the Fourth Proportional to 416,203.20, 574,361.92 and 225,216.57

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Solution

The fourth proportional to 416,203.20, 574,361.92 and 225,216.57 is: 310,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,203.20 : 574,361.92 = 225,216.57 : x
  2. Step 2: Convert to fraction form
    416,203.20/574,361.92 = 225,216.57/x
  3. Step 3: Cross multiply
    416,203.20x = 574,361.92 × 225,216.57
  4. Step 4: Simplify right side
    416,203.20x = 129,355,821,561.01
  5. Step 5: Solve for x
    x = 129,355,821,561.01/416,203.20
  6. Step 6: Final answer
    x = 310,799.68

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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.