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Finding the Fourth Proportional to 509,893.92, 764,842.32 and 154,910.88

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Solution

The fourth proportional to 509,893.92, 764,842.32 and 154,910.88 is: 232,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,893.92 : 764,842.32 = 154,910.88 : x
  2. Step 2: Convert to fraction form
    509,893.92/764,842.32 = 154,910.88/x
  3. Step 3: Cross multiply
    509,893.92x = 764,842.32 × 154,910.88
  4. Step 4: Simplify right side
    509,893.92x = 118,482,396,852.44
  5. Step 5: Solve for x
    x = 118,482,396,852.44/509,893.92
  6. Step 6: Final answer
    x = 232,366.76

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Similar ratio
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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.