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Finding the Fourth Proportional to 700,842.68, 967,142.73 and 394,913.58

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Solution

The fourth proportional to 700,842.68, 967,142.73 and 394,913.58 is: 544,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,842.68 : 967,142.73 = 394,913.58 : x
  2. Step 2: Convert to fraction form
    700,842.68/967,142.73 = 394,913.58/x
  3. Step 3: Cross multiply
    700,842.68x = 967,142.73 × 394,913.58
  4. Step 4: Simplify right side
    700,842.68x = 381,937,795,729.41
  5. Step 5: Solve for x
    x = 381,937,795,729.41/700,842.68
  6. Step 6: Final answer
    x = 544,969.37

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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.