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Finding the Fourth Proportional to 539,382.17, 744,627.26 and 394,024.73

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Solution

The fourth proportional to 539,382.17, 744,627.26 and 394,024.73 is: 543,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,382.17 : 744,627.26 = 394,024.73 : x
  2. Step 2: Convert to fraction form
    539,382.17/744,627.26 = 394,024.73/x
  3. Step 3: Cross multiply
    539,382.17x = 744,627.26 × 394,024.73
  4. Step 4: Simplify right side
    539,382.17x = 293,401,554,963.58
  5. Step 5: Solve for x
    x = 293,401,554,963.58/539,382.17
  6. Step 6: Final answer
    x = 543,958.57

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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.