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Finding the Fourth Proportional to 978,949.99, 1,468,249.82 and 622,906.39

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Solution

The fourth proportional to 978,949.99, 1,468,249.82 and 622,906.39 is: 934,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,949.99 : 1,468,249.82 = 622,906.39 : x
  2. Step 2: Convert to fraction form
    978,949.99/1,468,249.82 = 622,906.39/x
  3. Step 3: Cross multiply
    978,949.99x = 1,468,249.82 × 622,906.39
  4. Step 4: Simplify right side
    978,949.99x = 914,582,194,994.35
  5. Step 5: Solve for x
    x = 914,582,194,994.35/978,949.99
  6. Step 6: Final answer
    x = 934,248.13

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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.