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Finding the Fourth Proportional to 455,572.68, 683,377.08 and 171,234.60

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Solution

The fourth proportional to 455,572.68, 683,377.08 and 171,234.60 is: 256,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,572.68 : 683,377.08 = 171,234.60 : x
  2. Step 2: Convert to fraction form
    455,572.68/683,377.08 = 171,234.60/x
  3. Step 3: Cross multiply
    455,572.68x = 683,377.08 × 171,234.60
  4. Step 4: Simplify right side
    455,572.68x = 117,017,800,942.97
  5. Step 5: Solve for x
    x = 117,017,800,942.97/455,572.68
  6. Step 6: Final answer
    x = 256,858.69

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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.