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Finding the Fourth Proportional to 439,636.62, 606,731.16 and 246,063.78

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Solution

The fourth proportional to 439,636.62, 606,731.16 and 246,063.78 is: 339,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,636.62 : 606,731.16 = 246,063.78 : x
  2. Step 2: Convert to fraction form
    439,636.62/606,731.16 = 246,063.78/x
  3. Step 3: Cross multiply
    439,636.62x = 606,731.16 × 246,063.78
  4. Step 4: Simplify right side
    439,636.62x = 149,294,562,673.39
  5. Step 5: Solve for x
    x = 149,294,562,673.39/439,636.62
  6. Step 6: Final answer
    x = 339,586.28

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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.