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Finding the Fourth Proportional to 455,908.44, 683,251.32 and 354,828.56

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Solution

The fourth proportional to 455,908.44, 683,251.32 and 354,828.56 is: 531,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,908.44 : 683,251.32 = 354,828.56 : x
  2. Step 2: Convert to fraction form
    455,908.44/683,251.32 = 354,828.56/x
  3. Step 3: Cross multiply
    455,908.44x = 683,251.32 × 354,828.56
  4. Step 4: Simplify right side
    455,908.44x = 242,437,081,993.70
  5. Step 5: Solve for x
    x = 242,437,081,993.70/455,908.44
  6. Step 6: Final answer
    x = 531,767.04

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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.