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Finding the Fourth Proportional to 448,640.60, 673,079.70 and 195,812.60

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Solution

The fourth proportional to 448,640.60, 673,079.70 and 195,812.60 is: 293,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,640.60 : 673,079.70 = 195,812.60 : x
  2. Step 2: Convert to fraction form
    448,640.60/673,079.70 = 195,812.60/x
  3. Step 3: Cross multiply
    448,640.60x = 673,079.70 × 195,812.60
  4. Step 4: Simplify right side
    448,640.60x = 131,797,486,064.22
  5. Step 5: Solve for x
    x = 131,797,486,064.22/448,640.60
  6. Step 6: Final answer
    x = 293,770.75

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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.