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Finding the Fourth Proportional to 449,469.40, 673,329.30 and 249,431.80

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Solution

The fourth proportional to 449,469.40, 673,329.30 and 249,431.80 is: 373,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,469.40 : 673,329.30 = 249,431.80 : x
  2. Step 2: Convert to fraction form
    449,469.40/673,329.30 = 249,431.80/x
  3. Step 3: Cross multiply
    449,469.40x = 673,329.30 × 249,431.80
  4. Step 4: Simplify right side
    449,469.40x = 167,949,739,291.74
  5. Step 5: Solve for x
    x = 167,949,739,291.74/449,469.40
  6. Step 6: Final answer
    x = 373,662.23

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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.