Home / 383,185.26-528,790.41-213,420.60

Finding the Fourth Proportional to 383,185.26, 528,790.41 and 213,420.60

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Solution

The fourth proportional to 383,185.26, 528,790.41 and 213,420.60 is: 294,517.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,185.26 : 528,790.41 = 213,420.60 : x
  2. Step 2: Convert to fraction form
    383,185.26/528,790.41 = 213,420.60/x
  3. Step 3: Cross multiply
    383,185.26x = 528,790.41 × 213,420.60
  4. Step 4: Simplify right side
    383,185.26x = 112,854,766,576.45
  5. Step 5: Solve for x
    x = 112,854,766,576.45/383,185.26
  6. Step 6: Final answer
    x = 294,517.50

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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.