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Finding the Fourth Proportional to 324,623.60, 486,060.60 and 254,639.60

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Solution

The fourth proportional to 324,623.60, 486,060.60 and 254,639.60 is: 381,273.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,623.60 : 486,060.60 = 254,639.60 : x
  2. Step 2: Convert to fraction form
    324,623.60/486,060.60 = 254,639.60/x
  3. Step 3: Cross multiply
    324,623.60x = 486,060.60 × 254,639.60
  4. Step 4: Simplify right side
    324,623.60x = 123,770,276,759.76
  5. Step 5: Solve for x
    x = 123,770,276,759.76/324,623.60
  6. Step 6: Final answer
    x = 381,273.19

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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.