Home / 579,976.21-800,346.27-321,864.46

Finding the Fourth Proportional to 579,976.21, 800,346.27 and 321,864.46

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Solution

The fourth proportional to 579,976.21, 800,346.27 and 321,864.46 is: 444,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,976.21 : 800,346.27 = 321,864.46 : x
  2. Step 2: Convert to fraction form
    579,976.21/800,346.27 = 321,864.46/x
  3. Step 3: Cross multiply
    579,976.21x = 800,346.27 × 321,864.46
  4. Step 4: Simplify right side
    579,976.21x = 257,603,020,006.56
  5. Step 5: Solve for x
    x = 257,603,020,006.56/579,976.21
  6. Step 6: Final answer
    x = 444,161.36

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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.