Home / 383,257.21-528,911.30-213,491.41

Finding the Fourth Proportional to 383,257.21, 528,911.30 and 213,491.41

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Solution

The fourth proportional to 383,257.21, 528,911.30 and 213,491.41 is: 294,627.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,257.21 : 528,911.30 = 213,491.41 : x
  2. Step 2: Convert to fraction form
    383,257.21/528,911.30 = 213,491.41/x
  3. Step 3: Cross multiply
    383,257.21x = 528,911.30 × 213,491.41
  4. Step 4: Simplify right side
    383,257.21x = 112,918,019,201.93
  5. Step 5: Solve for x
    x = 112,918,019,201.93/383,257.21
  6. Step 6: Final answer
    x = 294,627.25

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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.