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Finding the Fourth Proportional to 273,211.20, 409,379.40 and 173,192.40

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Solution

The fourth proportional to 273,211.20, 409,379.40 and 173,192.40 is: 259,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,211.20 : 409,379.40 = 173,192.40 : x
  2. Step 2: Convert to fraction form
    273,211.20/409,379.40 = 173,192.40/x
  3. Step 3: Cross multiply
    273,211.20x = 409,379.40 × 173,192.40
  4. Step 4: Simplify right side
    273,211.20x = 70,901,400,796.56
  5. Step 5: Solve for x
    x = 70,901,400,796.56/273,211.20
  6. Step 6: Final answer
    x = 259,511.33

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1.5x scale

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.