Home / 494,384.41-682,255.74-290,443.83

Finding the Fourth Proportional to 494,384.41, 682,255.74 and 290,443.83

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Solution

The fourth proportional to 494,384.41, 682,255.74 and 290,443.83 is: 400,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,384.41 : 682,255.74 = 290,443.83 : x
  2. Step 2: Convert to fraction form
    494,384.41/682,255.74 = 290,443.83/x
  3. Step 3: Cross multiply
    494,384.41x = 682,255.74 × 290,443.83
  4. Step 4: Simplify right side
    494,384.41x = 198,156,970,165.08
  5. Step 5: Solve for x
    x = 198,156,970,165.08/494,384.41
  6. Step 6: Final answer
    x = 400,815.57

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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.