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Finding the Fourth Proportional to 548,905.94, 757,955.19 and 345,022.52

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Solution

The fourth proportional to 548,905.94, 757,955.19 and 345,022.52 is: 476,423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,905.94 : 757,955.19 = 345,022.52 : x
  2. Step 2: Convert to fraction form
    548,905.94/757,955.19 = 345,022.52/x
  3. Step 3: Cross multiply
    548,905.94x = 757,955.19 × 345,022.52
  4. Step 4: Simplify right side
    548,905.94x = 261,511,613,453.09
  5. Step 5: Solve for x
    x = 261,511,613,453.09/548,905.94
  6. Step 6: Final answer
    x = 476,423.36

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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.