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Finding the Fourth Proportional to 465,632.20, 699,485.10 and 446,739.40

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Solution

The fourth proportional to 465,632.20, 699,485.10 and 446,739.40 is: 671,103.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,632.20 : 699,485.10 = 446,739.40 : x
  2. Step 2: Convert to fraction form
    465,632.20/699,485.10 = 446,739.40/x
  3. Step 3: Cross multiply
    465,632.20x = 699,485.10 × 446,739.40
  4. Step 4: Simplify right side
    465,632.20x = 312,487,553,882.94
  5. Step 5: Solve for x
    x = 312,487,553,882.94/465,632.20
  6. Step 6: Final answer
    x = 671,103.83

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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.