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Finding the Fourth Proportional to 324,361.60, 486,663.36 and 198,260.80

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Solution

The fourth proportional to 324,361.60, 486,663.36 and 198,260.80 is: 297,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,361.60 : 486,663.36 = 198,260.80 : x
  2. Step 2: Convert to fraction form
    324,361.60/486,663.36 = 198,260.80/x
  3. Step 3: Cross multiply
    324,361.60x = 486,663.36 × 198,260.80
  4. Step 4: Simplify right side
    324,361.60x = 96,486,267,084.29
  5. Step 5: Solve for x
    x = 96,486,267,084.29/324,361.60
  6. Step 6: Final answer
    x = 297,465.13

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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.