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Finding the Fourth Proportional to 443,215.72, 664,590.30 and 303,014.44

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Solution

The fourth proportional to 443,215.72, 664,590.30 and 303,014.44 is: 454,362.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,215.72 : 664,590.30 = 303,014.44 : x
  2. Step 2: Convert to fraction form
    443,215.72/664,590.30 = 303,014.44/x
  3. Step 3: Cross multiply
    443,215.72x = 664,590.30 × 303,014.44
  4. Step 4: Simplify right side
    443,215.72x = 201,380,457,583.93
  5. Step 5: Solve for x
    x = 201,380,457,583.93/443,215.72
  6. Step 6: Final answer
    x = 454,362.17

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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.