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Finding the Fourth Proportional to 665,500.40, 998,250.60 and 192,201.20

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Solution

The fourth proportional to 665,500.40, 998,250.60 and 192,201.20 is: 288,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,500.40 : 998,250.60 = 192,201.20 : x
  2. Step 2: Convert to fraction form
    665,500.40/998,250.60 = 192,201.20/x
  3. Step 3: Cross multiply
    665,500.40x = 998,250.60 × 192,201.20
  4. Step 4: Simplify right side
    665,500.40x = 191,864,963,220.72
  5. Step 5: Solve for x
    x = 191,864,963,220.72/665,500.40
  6. Step 6: Final answer
    x = 288,301.80

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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.