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Finding the Fourth Proportional to 673,291.50, 929,161.74 and 371,504.94

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Solution

The fourth proportional to 673,291.50, 929,161.74 and 371,504.94 is: 512,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,291.50 : 929,161.74 = 371,504.94 : x
  2. Step 2: Convert to fraction form
    673,291.50/929,161.74 = 371,504.94/x
  3. Step 3: Cross multiply
    673,291.50x = 929,161.74 × 371,504.94
  4. Step 4: Simplify right side
    673,291.50x = 345,188,176,469.00
  5. Step 5: Solve for x
    x = 345,188,176,469.00/673,291.50
  6. Step 6: Final answer
    x = 512,687.56

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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.