Home / 579,973.20-800,342.12-321,861.44

Finding the Fourth Proportional to 579,973.20, 800,342.12 and 321,861.44

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Solution

The fourth proportional to 579,973.20, 800,342.12 and 321,861.44 is: 444,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,973.20 : 800,342.12 = 321,861.44 : x
  2. Step 2: Convert to fraction form
    579,973.20/800,342.12 = 321,861.44/x
  3. Step 3: Cross multiply
    579,973.20x = 800,342.12 × 321,861.44
  4. Step 4: Simplify right side
    579,973.20x = 257,599,267,235.85
  5. Step 5: Solve for x
    x = 257,599,267,235.85/579,973.20
  6. Step 6: Final answer
    x = 444,157.19

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1.5x scale

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.