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Finding the Fourth Proportional to 312,232.96, 430,891.92 and 191,350.89

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Solution

The fourth proportional to 312,232.96, 430,891.92 and 191,350.89 is: 264,070.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,232.96 : 430,891.92 = 191,350.89 : x
  2. Step 2: Convert to fraction form
    312,232.96/430,891.92 = 191,350.89/x
  3. Step 3: Cross multiply
    312,232.96x = 430,891.92 × 191,350.89
  4. Step 4: Simplify right side
    312,232.96x = 82,451,552,385.81
  5. Step 5: Solve for x
    x = 82,451,552,385.81/312,232.96
  6. Step 6: Final answer
    x = 264,070.62

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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.