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Finding the Fourth Proportional to 324,003.60, 485,859.60 and 124,257.60

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Solution

The fourth proportional to 324,003.60, 485,859.60 and 124,257.60 is: 186,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,003.60 : 485,859.60 = 124,257.60 : x
  2. Step 2: Convert to fraction form
    324,003.60/485,859.60 = 124,257.60/x
  3. Step 3: Cross multiply
    324,003.60x = 485,859.60 × 124,257.60
  4. Step 4: Simplify right side
    324,003.60x = 60,371,747,832.96
  5. Step 5: Solve for x
    x = 60,371,747,832.96/324,003.60
  6. Step 6: Final answer
    x = 186,330.48

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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.