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Finding the Fourth Proportional to 416,365.56, 574,583.16 and 225,378.48

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Solution

The fourth proportional to 416,365.56, 574,583.16 and 225,378.48 is: 311,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,365.56 : 574,583.16 = 225,378.48 : x
  2. Step 2: Convert to fraction form
    416,365.56/574,583.16 = 225,378.48/x
  3. Step 3: Cross multiply
    416,365.56x = 574,583.16 × 225,378.48
  4. Step 4: Simplify right side
    416,365.56x = 129,498,679,234.40
  5. Step 5: Solve for x
    x = 129,498,679,234.40/416,365.56
  6. Step 6: Final answer
    x = 311,021.59

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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.