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Finding the Fourth Proportional to 447,932.81, 618,147.28 and 246,728.81

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Solution

The fourth proportional to 447,932.81, 618,147.28 and 246,728.81 is: 340,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,932.81 : 618,147.28 = 246,728.81 : x
  2. Step 2: Convert to fraction form
    447,932.81/618,147.28 = 246,728.81/x
  3. Step 3: Cross multiply
    447,932.81x = 618,147.28 × 246,728.81
  4. Step 4: Simplify right side
    447,932.81x = 152,514,744,652.92
  5. Step 5: Solve for x
    x = 152,514,744,652.92/447,932.81
  6. Step 6: Final answer
    x = 340,485.76

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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.