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Finding the Fourth Proportional to 665,334.80, 998,002.20 and 192,035.60

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Solution

The fourth proportional to 665,334.80, 998,002.20 and 192,035.60 is: 288,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,334.80 : 998,002.20 = 192,035.60 : x
  2. Step 2: Convert to fraction form
    665,334.80/998,002.20 = 192,035.60/x
  3. Step 3: Cross multiply
    665,334.80x = 998,002.20 × 192,035.60
  4. Step 4: Simplify right side
    665,334.80x = 191,651,951,278.32
  5. Step 5: Solve for x
    x = 191,651,951,278.32/665,334.80
  6. Step 6: Final answer
    x = 288,053.40

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Similar ratio
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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.