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Finding the Fourth Proportional to 379,846.48, 569,559.39 and 155,364.57

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Solution

The fourth proportional to 379,846.48, 569,559.39 and 155,364.57 is: 232,960.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,846.48 : 569,559.39 = 155,364.57 : x
  2. Step 2: Convert to fraction form
    379,846.48/569,559.39 = 155,364.57/x
  3. Step 3: Cross multiply
    379,846.48x = 569,559.39 × 155,364.57
  4. Step 4: Simplify right side
    379,846.48x = 88,489,349,716.81
  5. Step 5: Solve for x
    x = 88,489,349,716.81/379,846.48
  6. Step 6: Final answer
    x = 232,960.83

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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.