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Finding the Fourth Proportional to 297,940.20, 446,910.30 and 157,972.20

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Solution

The fourth proportional to 297,940.20, 446,910.30 and 157,972.20 is: 236,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,940.20 : 446,910.30 = 157,972.20 : x
  2. Step 2: Convert to fraction form
    297,940.20/446,910.30 = 157,972.20/x
  3. Step 3: Cross multiply
    297,940.20x = 446,910.30 × 157,972.20
  4. Step 4: Simplify right side
    297,940.20x = 70,599,403,293.66
  5. Step 5: Solve for x
    x = 70,599,403,293.66/297,940.20
  6. Step 6: Final answer
    x = 236,958.30

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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.