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Finding the Fourth Proportional to 352,910.34, 487,015.34 and 191,765.40

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Solution

The fourth proportional to 352,910.34, 487,015.34 and 191,765.40 is: 264,635.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,910.34 : 487,015.34 = 191,765.40 : x
  2. Step 2: Convert to fraction form
    352,910.34/487,015.34 = 191,765.40/x
  3. Step 3: Cross multiply
    352,910.34x = 487,015.34 × 191,765.40
  4. Step 4: Simplify right side
    352,910.34x = 93,392,691,481.24
  5. Step 5: Solve for x
    x = 93,392,691,481.24/352,910.34
  6. Step 6: Final answer
    x = 264,635.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.