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Finding the Fourth Proportional to 400,854.42, 552,797.46 and 239,683.86

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Solution

The fourth proportional to 400,854.42, 552,797.46 and 239,683.86 is: 330,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,854.42 : 552,797.46 = 239,683.86 : x
  2. Step 2: Convert to fraction form
    400,854.42/552,797.46 = 239,683.86/x
  3. Step 3: Cross multiply
    400,854.42x = 552,797.46 × 239,683.86
  4. Step 4: Simplify right side
    400,854.42x = 132,496,629,011.00
  5. Step 5: Solve for x
    x = 132,496,629,011.00/400,854.42
  6. Step 6: Final answer
    x = 330,535.53

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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.