Home / 673,861.62-929,819.27-398,181.11

Finding the Fourth Proportional to 673,861.62, 929,819.27 and 398,181.11

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Solution

The fourth proportional to 673,861.62, 929,819.27 and 398,181.11 is: 549,425.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,861.62 : 929,819.27 = 398,181.11 : x
  2. Step 2: Convert to fraction form
    673,861.62/929,819.27 = 398,181.11/x
  3. Step 3: Cross multiply
    673,861.62x = 929,819.27 × 398,181.11
  4. Step 4: Simplify right side
    673,861.62x = 370,236,469,027.99
  5. Step 5: Solve for x
    x = 370,236,469,027.99/673,861.62
  6. Step 6: Final answer
    x = 549,425.07

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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.