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Finding the Fourth Proportional to 445,797.96, 668,796.30 and 209,014.44

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Solution

The fourth proportional to 445,797.96, 668,796.30 and 209,014.44 is: 313,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,797.96 : 668,796.30 = 209,014.44 : x
  2. Step 2: Convert to fraction form
    445,797.96/668,796.30 = 209,014.44/x
  3. Step 3: Cross multiply
    445,797.96x = 668,796.30 × 209,014.44
  4. Step 4: Simplify right side
    445,797.96x = 139,788,084,118.57
  5. Step 5: Solve for x
    x = 139,788,084,118.57/445,797.96
  6. Step 6: Final answer
    x = 313,568.25

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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.