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Finding the Fourth Proportional to 324,078.40, 486,117.60 and 244,244.80

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Solution

The fourth proportional to 324,078.40, 486,117.60 and 244,244.80 is: 366,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,078.40 : 486,117.60 = 244,244.80 : x
  2. Step 2: Convert to fraction form
    324,078.40/486,117.60 = 244,244.80/x
  3. Step 3: Cross multiply
    324,078.40x = 486,117.60 × 244,244.80
  4. Step 4: Simplify right side
    324,078.40x = 118,731,695,988.48
  5. Step 5: Solve for x
    x = 118,731,695,988.48/324,078.40
  6. Step 6: Final answer
    x = 366,367.20

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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.