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Finding the Fourth Proportional to 418,471.16, 577,553.24 and 255,222.37

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Solution

The fourth proportional to 418,471.16, 577,553.24 and 255,222.37 is: 352,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,471.16 : 577,553.24 = 255,222.37 : x
  2. Step 2: Convert to fraction form
    418,471.16/577,553.24 = 255,222.37/x
  3. Step 3: Cross multiply
    418,471.16x = 577,553.24 × 255,222.37
  4. Step 4: Simplify right side
    418,471.16x = 147,404,503,993.98
  5. Step 5: Solve for x
    x = 147,404,503,993.98/418,471.16
  6. Step 6: Final answer
    x = 352,245.32

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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.