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Finding the Fourth Proportional to 226,811.10, 340,216.65 and 191,819.10

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Solution

The fourth proportional to 226,811.10, 340,216.65 and 191,819.10 is: 287,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,811.10 : 340,216.65 = 191,819.10 : x
  2. Step 2: Convert to fraction form
    226,811.10/340,216.65 = 191,819.10/x
  3. Step 3: Cross multiply
    226,811.10x = 340,216.65 × 191,819.10
  4. Step 4: Simplify right side
    226,811.10x = 65,260,051,608.02
  5. Step 5: Solve for x
    x = 65,260,051,608.02/226,811.10
  6. Step 6: Final answer
    x = 287,728.65

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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.