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Finding the Fourth Proportional to 700,629.42, 966,871.55 and 394,709.46

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Solution

The fourth proportional to 700,629.42, 966,871.55 and 394,709.46 is: 544,700.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,629.42 : 966,871.55 = 394,709.46 : x
  2. Step 2: Convert to fraction form
    700,629.42/966,871.55 = 394,709.46/x
  3. Step 3: Cross multiply
    700,629.42x = 966,871.55 × 394,709.46
  4. Step 4: Simplify right side
    700,629.42x = 381,633,345,416.32
  5. Step 5: Solve for x
    x = 381,633,345,416.32/700,629.42
  6. Step 6: Final answer
    x = 544,700.71

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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.