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Finding the Fourth Proportional to 700,659.91, 966,906.27 and 394,834.53

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Solution

The fourth proportional to 700,659.91, 966,906.27 and 394,834.53 is: 544,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,659.91 : 966,906.27 = 394,834.53 : x
  2. Step 2: Convert to fraction form
    700,659.91/966,906.27 = 394,834.53/x
  3. Step 3: Cross multiply
    700,659.91x = 966,906.27 × 394,834.53
  4. Step 4: Simplify right side
    700,659.91x = 381,767,984,253.04
  5. Step 5: Solve for x
    x = 381,767,984,253.04/700,659.91
  6. Step 6: Final answer
    x = 544,869.17

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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.