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Finding the Fourth Proportional to 449,326.26, 673,989.39 and 308,658.42

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Solution

The fourth proportional to 449,326.26, 673,989.39 and 308,658.42 is: 462,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,326.26 : 673,989.39 = 308,658.42 : x
  2. Step 2: Convert to fraction form
    449,326.26/673,989.39 = 308,658.42/x
  3. Step 3: Cross multiply
    449,326.26x = 673,989.39 × 308,658.42
  4. Step 4: Simplify right side
    449,326.26x = 208,032,500,214.16
  5. Step 5: Solve for x
    x = 208,032,500,214.16/449,326.26
  6. Step 6: Final answer
    x = 462,987.63

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Similar ratio
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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.