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Finding the Fourth Proportional to 609,603.73, 910,698.05 and 394,620.27

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Solution

The fourth proportional to 609,603.73, 910,698.05 and 394,620.27 is: 589,530.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,603.73 : 910,698.05 = 394,620.27 : x
  2. Step 2: Convert to fraction form
    609,603.73/910,698.05 = 394,620.27/x
  3. Step 3: Cross multiply
    609,603.73x = 910,698.05 × 394,620.27
  4. Step 4: Simplify right side
    609,603.73x = 359,379,907,566.79
  5. Step 5: Solve for x
    x = 359,379,907,566.79/609,603.73
  6. Step 6: Final answer
    x = 589,530.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.