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Finding the Fourth Proportional to 397,549.17, 548,494.00 and 225,453.60

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Solution

The fourth proportional to 397,549.17, 548,494.00 and 225,453.60 is: 311,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,549.17 : 548,494.00 = 225,453.60 : x
  2. Step 2: Convert to fraction form
    397,549.17/548,494.00 = 225,453.60/x
  3. Step 3: Cross multiply
    397,549.17x = 548,494.00 × 225,453.60
  4. Step 4: Simplify right side
    397,549.17x = 123,659,946,314.77
  5. Step 5: Solve for x
    x = 123,659,946,314.77/397,549.17
  6. Step 6: Final answer
    x = 311,055.73

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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.