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Finding the Fourth Proportional to 442,743.44, 610,986 and 251,768.52

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Solution

The fourth proportional to 442,743.44, 610,986 and 251,768.52 is: 347,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,743.44 : 610,986 = 251,768.52 : x
  2. Step 2: Convert to fraction form
    442,743.44/610,986 = 251,768.52/x
  3. Step 3: Cross multiply
    442,743.44x = 610,986 × 251,768.52
  4. Step 4: Simplify right side
    442,743.44x = 153,827,040,960.72
  5. Step 5: Solve for x
    x = 153,827,040,960.72/442,743.44
  6. Step 6: Final answer
    x = 347,440.59

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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.