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Finding the Fourth Proportional to 700,631.57, 966,874.52 and 394,711.62

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Solution

The fourth proportional to 700,631.57, 966,874.52 and 394,711.62 is: 544,703.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,631.57 : 966,874.52 = 394,711.62 : x
  2. Step 2: Convert to fraction form
    700,631.57/966,874.52 = 394,711.62/x
  3. Step 3: Cross multiply
    700,631.57x = 966,874.52 × 394,711.62
  4. Step 4: Simplify right side
    700,631.57x = 381,636,609,565.92
  5. Step 5: Solve for x
    x = 381,636,609,565.92/700,631.57
  6. Step 6: Final answer
    x = 544,703.70

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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.