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Finding the Fourth Proportional to 405,224.15, 607,645.41 and 236,793.15

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Solution

The fourth proportional to 405,224.15, 607,645.41 and 236,793.15 is: 355,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,224.15 : 607,645.41 = 236,793.15 : x
  2. Step 2: Convert to fraction form
    405,224.15/607,645.41 = 236,793.15/x
  3. Step 3: Cross multiply
    405,224.15x = 607,645.41 × 236,793.15
  4. Step 4: Simplify right side
    405,224.15x = 143,886,270,716.94
  5. Step 5: Solve for x
    x = 143,886,270,716.94/405,224.15
  6. Step 6: Final answer
    x = 355,078.23

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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.