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Finding the Fourth Proportional to 608,093.78, 839,406.21 and 544,321.30

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Solution

The fourth proportional to 608,093.78, 839,406.21 and 544,321.30 is: 751,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,093.78 : 839,406.21 = 544,321.30 : x
  2. Step 2: Convert to fraction form
    608,093.78/839,406.21 = 544,321.30/x
  3. Step 3: Cross multiply
    608,093.78x = 839,406.21 × 544,321.30
  4. Step 4: Simplify right side
    608,093.78x = 456,906,679,455.27
  5. Step 5: Solve for x
    x = 456,906,679,455.27/608,093.78
  6. Step 6: Final answer
    x = 751,375.35

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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.