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Finding the Fourth Proportional to 273,438.20, 410,157.30 and 251,786.90

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Solution

The fourth proportional to 273,438.20, 410,157.30 and 251,786.90 is: 377,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,438.20 : 410,157.30 = 251,786.90 : x
  2. Step 2: Convert to fraction form
    273,438.20/410,157.30 = 251,786.90/x
  3. Step 3: Cross multiply
    273,438.20x = 410,157.30 × 251,786.90
  4. Step 4: Simplify right side
    273,438.20x = 103,272,235,079.37
  5. Step 5: Solve for x
    x = 103,272,235,079.37/273,438.20
  6. Step 6: Final answer
    x = 377,680.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.