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Finding the Fourth Proportional to 457,882.40, 685,511.40 and 444,760.40

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Solution

The fourth proportional to 457,882.40, 685,511.40 and 444,760.40 is: 665,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,882.40 : 685,511.40 = 444,760.40 : x
  2. Step 2: Convert to fraction form
    457,882.40/685,511.40 = 444,760.40/x
  3. Step 3: Cross multiply
    457,882.40x = 685,511.40 × 444,760.40
  4. Step 4: Simplify right side
    457,882.40x = 304,888,324,468.56
  5. Step 5: Solve for x
    x = 304,888,324,468.56/457,882.40
  6. Step 6: Final answer
    x = 665,866.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.