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Finding the Fourth Proportional to 700,205.56, 966,375.75 and 394,341.73

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Solution

The fourth proportional to 700,205.56, 966,375.75 and 394,341.73 is: 544,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,205.56 : 966,375.75 = 394,341.73 : x
  2. Step 2: Convert to fraction form
    700,205.56/966,375.75 = 394,341.73/x
  3. Step 3: Cross multiply
    700,205.56x = 966,375.75 × 394,341.73
  4. Step 4: Simplify right side
    700,205.56x = 381,082,286,293.02
  5. Step 5: Solve for x
    x = 381,082,286,293.02/700,205.56
  6. Step 6: Final answer
    x = 544,243.45

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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.