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Finding the Fourth Proportional to 504,441.40, 696,107.94 and 274,993.72

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Solution

The fourth proportional to 504,441.40, 696,107.94 and 274,993.72 is: 379,479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,441.40 : 696,107.94 = 274,993.72 : x
  2. Step 2: Convert to fraction form
    504,441.40/696,107.94 = 274,993.72/x
  3. Step 3: Cross multiply
    504,441.40x = 696,107.94 × 274,993.72
  4. Step 4: Simplify right side
    504,441.40x = 191,425,311,942.14
  5. Step 5: Solve for x
    x = 191,425,311,942.14/504,441.40
  6. Step 6: Final answer
    x = 379,479.78

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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.