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Finding the Fourth Proportional to 445,522.80, 668,274.60 and 296,716.40

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Solution

The fourth proportional to 445,522.80, 668,274.60 and 296,716.40 is: 445,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,522.80 : 668,274.60 = 296,716.40 : x
  2. Step 2: Convert to fraction form
    445,522.80/668,274.60 = 296,716.40/x
  3. Step 3: Cross multiply
    445,522.80x = 668,274.60 × 296,716.40
  4. Step 4: Simplify right side
    445,522.80x = 198,288,033,523.44
  5. Step 5: Solve for x
    x = 198,288,033,523.44/445,522.80
  6. Step 6: Final answer
    x = 445,068.21

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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.