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Finding the Fourth Proportional to 439,604.40, 658,920.60 and 173,276.40

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Solution

The fourth proportional to 439,604.40, 658,920.60 and 173,276.40 is: 259,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,604.40 : 658,920.60 = 173,276.40 : x
  2. Step 2: Convert to fraction form
    439,604.40/658,920.60 = 173,276.40/x
  3. Step 3: Cross multiply
    439,604.40x = 658,920.60 × 173,276.40
  4. Step 4: Simplify right side
    439,604.40x = 114,175,389,453.84
  5. Step 5: Solve for x
    x = 114,175,389,453.84/439,604.40
  6. Step 6: Final answer
    x = 259,723.04

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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.