Home / 383,163.69-528,765.90-213,397.80

Finding the Fourth Proportional to 383,163.69, 528,765.90 and 213,397.80

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Solution

The fourth proportional to 383,163.69, 528,765.90 and 213,397.80 is: 294,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,163.69 : 528,765.90 = 213,397.80 : x
  2. Step 2: Convert to fraction form
    383,163.69/528,765.90 = 213,397.80/x
  3. Step 3: Cross multiply
    383,163.69x = 528,765.90 × 213,397.80
  4. Step 4: Simplify right side
    383,163.69x = 112,837,479,775.02
  5. Step 5: Solve for x
    x = 112,837,479,775.02/383,163.69
  6. Step 6: Final answer
    x = 294,488.97

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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.