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Finding the Fourth Proportional to 439,718.76, 606,760.89 and 246,137.31

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Solution

The fourth proportional to 439,718.76, 606,760.89 and 246,137.31 is: 339,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,718.76 : 606,760.89 = 246,137.31 : x
  2. Step 2: Convert to fraction form
    439,718.76/606,760.89 = 246,137.31/x
  3. Step 3: Cross multiply
    439,718.76x = 606,760.89 × 246,137.31
  4. Step 4: Simplify right side
    439,718.76x = 149,346,493,277.81
  5. Step 5: Solve for x
    x = 149,346,493,277.81/439,718.76
  6. Step 6: Final answer
    x = 339,640.94

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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.