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Finding the Fourth Proportional to 324,061.80, 486,092.70 and 198,090.60

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Solution

The fourth proportional to 324,061.80, 486,092.70 and 198,090.60 is: 297,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,061.80 : 486,092.70 = 198,090.60 : x
  2. Step 2: Convert to fraction form
    324,061.80/486,092.70 = 198,090.60/x
  3. Step 3: Cross multiply
    324,061.80x = 486,092.70 × 198,090.60
  4. Step 4: Simplify right side
    324,061.80x = 96,290,394,598.62
  5. Step 5: Solve for x
    x = 96,290,394,598.62/324,061.80
  6. Step 6: Final answer
    x = 297,135.90

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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.