Home / 579,781.84-800,139.96-321,741.44

Finding the Fourth Proportional to 579,781.84, 800,139.96 and 321,741.44

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Solution

The fourth proportional to 579,781.84, 800,139.96 and 321,741.44 is: 444,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,781.84 : 800,139.96 = 321,741.44 : x
  2. Step 2: Convert to fraction form
    579,781.84/800,139.96 = 321,741.44/x
  3. Step 3: Cross multiply
    579,781.84x = 800,139.96 × 321,741.44
  4. Step 4: Simplify right side
    579,781.84x = 257,438,182,931.94
  5. Step 5: Solve for x
    x = 257,438,182,931.94/579,781.84
  6. Step 6: Final answer
    x = 444,025.95

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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.