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Finding the Fourth Proportional to 673,311.50, 929,189.31 and 371,524.94

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Solution

The fourth proportional to 673,311.50, 929,189.31 and 371,524.94 is: 512,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,311.50 : 929,189.31 = 371,524.94 : x
  2. Step 2: Convert to fraction form
    673,311.50/929,189.31 = 371,524.94/x
  3. Step 3: Cross multiply
    673,311.50x = 929,189.31 × 371,524.94
  4. Step 4: Simplify right side
    673,311.50x = 345,217,002,646.39
  5. Step 5: Solve for x
    x = 345,217,002,646.39/673,311.50
  6. Step 6: Final answer
    x = 512,715.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.