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Finding the Fourth Proportional to 443,983.93, 666,143.67 and 266,614.59

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Solution

The fourth proportional to 443,983.93, 666,143.67 and 266,614.59 is: 400,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,983.93 : 666,143.67 = 266,614.59 : x
  2. Step 2: Convert to fraction form
    443,983.93/666,143.67 = 266,614.59/x
  3. Step 3: Cross multiply
    443,983.93x = 666,143.67 × 266,614.59
  4. Step 4: Simplify right side
    443,983.93x = 177,603,620,459.08
  5. Step 5: Solve for x
    x = 177,603,620,459.08/443,983.93
  6. Step 6: Final answer
    x = 400,022.63

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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.