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Finding the Fourth Proportional to 405,907.03, 608,847.99 and 192,828.33

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Solution

The fourth proportional to 405,907.03, 608,847.99 and 192,828.33 is: 289,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,907.03 : 608,847.99 = 192,828.33 : x
  2. Step 2: Convert to fraction form
    405,907.03/608,847.99 = 192,828.33/x
  3. Step 3: Cross multiply
    405,907.03x = 608,847.99 × 192,828.33
  4. Step 4: Simplify right side
    405,907.03x = 117,403,141,135.56
  5. Step 5: Solve for x
    x = 117,403,141,135.56/405,907.03
  6. Step 6: Final answer
    x = 289,236.53

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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.