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Finding the Fourth Proportional to 348,708.78, 481,364.37 and 235,684.62

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Solution

The fourth proportional to 348,708.78, 481,364.37 and 235,684.62 is: 325,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,708.78 : 481,364.37 = 235,684.62 : x
  2. Step 2: Convert to fraction form
    348,708.78/481,364.37 = 235,684.62/x
  3. Step 3: Cross multiply
    348,708.78x = 481,364.37 × 235,684.62
  4. Step 4: Simplify right side
    348,708.78x = 113,450,178,624.99
  5. Step 5: Solve for x
    x = 113,450,178,624.99/348,708.78
  6. Step 6: Final answer
    x = 325,343.63

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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.