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Finding the Fourth Proportional to 700,552.44, 966,704.96 and 394,531

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Solution

The fourth proportional to 700,552.44, 966,704.96 and 394,531 is: 544,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,552.44 : 966,704.96 = 394,531 : x
  2. Step 2: Convert to fraction form
    700,552.44/966,704.96 = 394,531/x
  3. Step 3: Cross multiply
    700,552.44x = 966,704.96 × 394,531
  4. Step 4: Simplify right side
    700,552.44x = 381,395,074,573.76
  5. Step 5: Solve for x
    x = 381,395,074,573.76/700,552.44
  6. Step 6: Final answer
    x = 544,420.45

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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.