Home / 1,163,431.44-1,745,176.32-321,990.48

Finding the Fourth Proportional to 1,163,431.44, 1,745,176.32 and 321,990.48

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Solution

The fourth proportional to 1,163,431.44, 1,745,176.32 and 321,990.48 is: 482,993.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,431.44 : 1,745,176.32 = 321,990.48 : x
  2. Step 2: Convert to fraction form
    1,163,431.44/1,745,176.32 = 321,990.48/x
  3. Step 3: Cross multiply
    1,163,431.44x = 1,745,176.32 × 321,990.48
  4. Step 4: Simplify right side
    1,163,431.44x = 561,930,160,961.43
  5. Step 5: Solve for x
    x = 561,930,160,961.43/1,163,431.44
  6. Step 6: Final answer
    x = 482,993.79

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.