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Finding the Fourth Proportional to 700,729.50, 966,970.94 and 394,823.96

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Solution

The fourth proportional to 700,729.50, 966,970.94 and 394,823.96 is: 544,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,729.50 : 966,970.94 = 394,823.96 : x
  2. Step 2: Convert to fraction form
    700,729.50/966,970.94 = 394,823.96/x
  3. Step 3: Cross multiply
    700,729.50x = 966,970.94 × 394,823.96
  4. Step 4: Simplify right side
    700,729.50x = 381,783,295,735.72
  5. Step 5: Solve for x
    x = 381,783,295,735.72/700,729.50
  6. Step 6: Final answer
    x = 544,836.91

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1.5x scale

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.