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Finding the Fourth Proportional to 297,937.40, 446,906.10 and 191,649.20

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Solution

The fourth proportional to 297,937.40, 446,906.10 and 191,649.20 is: 287,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,937.40 : 446,906.10 = 191,649.20 : x
  2. Step 2: Convert to fraction form
    297,937.40/446,906.10 = 191,649.20/x
  3. Step 3: Cross multiply
    297,937.40x = 446,906.10 × 191,649.20
  4. Step 4: Simplify right side
    297,937.40x = 85,649,196,540.12
  5. Step 5: Solve for x
    x = 85,649,196,540.12/297,937.40
  6. Step 6: Final answer
    x = 287,473.80

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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.