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Finding the Fourth Proportional to 673,900.21, 930,004.03 and 367,992.57

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Solution

The fourth proportional to 673,900.21, 930,004.03 and 367,992.57 is: 507,841.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,900.21 : 930,004.03 = 367,992.57 : x
  2. Step 2: Convert to fraction form
    673,900.21/930,004.03 = 367,992.57/x
  3. Step 3: Cross multiply
    673,900.21x = 930,004.03 × 367,992.57
  4. Step 4: Simplify right side
    673,900.21x = 342,234,571,826.29
  5. Step 5: Solve for x
    x = 342,234,571,826.29/673,900.21
  6. Step 6: Final answer
    x = 507,841.62

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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.