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Finding the Fourth Proportional to 443,997.77, 665,687.72 and 191,202.44

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Solution

The fourth proportional to 443,997.77, 665,687.72 and 191,202.44 is: 286,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,997.77 : 665,687.72 = 191,202.44 : x
  2. Step 2: Convert to fraction form
    443,997.77/665,687.72 = 191,202.44/x
  3. Step 3: Cross multiply
    443,997.77x = 665,687.72 × 191,202.44
  4. Step 4: Simplify right side
    443,997.77x = 127,281,113,491.60
  5. Step 5: Solve for x
    x = 127,281,113,491.60/443,997.77
  6. Step 6: Final answer
    x = 286,670.62

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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.