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Finding the Fourth Proportional to 416,741.20, 575,104.59 and 225,754.57

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Solution

The fourth proportional to 416,741.20, 575,104.59 and 225,754.57 is: 311,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,741.20 : 575,104.59 = 225,754.57 : x
  2. Step 2: Convert to fraction form
    416,741.20/575,104.59 = 225,754.57/x
  3. Step 3: Cross multiply
    416,741.20x = 575,104.59 × 225,754.57
  4. Step 4: Simplify right side
    416,741.20x = 129,832,489,420.48
  5. Step 5: Solve for x
    x = 129,832,489,420.48/416,741.20
  6. Step 6: Final answer
    x = 311,542.25

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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.