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Finding the Fourth Proportional to 807,137.44, 1,210,775.82 and 208,093.44

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Solution

The fourth proportional to 807,137.44, 1,210,775.82 and 208,093.44 is: 312,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,137.44 : 1,210,775.82 = 208,093.44 : x
  2. Step 2: Convert to fraction form
    807,137.44/1,210,775.82 = 208,093.44/x
  3. Step 3: Cross multiply
    807,137.44x = 1,210,775.82 × 208,093.44
  4. Step 4: Simplify right side
    807,137.44x = 251,954,505,452.62
  5. Step 5: Solve for x
    x = 251,954,505,452.62/807,137.44
  6. Step 6: Final answer
    x = 312,158.12

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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.