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Finding the Fourth Proportional to 315,846.96, 436,329.78 and 273,331.68

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Solution

The fourth proportional to 315,846.96, 436,329.78 and 273,331.68 is: 377,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,846.96 : 436,329.78 = 273,331.68 : x
  2. Step 2: Convert to fraction form
    315,846.96/436,329.78 = 273,331.68/x
  3. Step 3: Cross multiply
    315,846.96x = 436,329.78 × 273,331.68
  4. Step 4: Simplify right side
    315,846.96x = 119,262,751,801.43
  5. Step 5: Solve for x
    x = 119,262,751,801.43/315,846.96
  6. Step 6: Final answer
    x = 377,596.64

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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.