Home / 641,048.09-961,622.69-214,586.42

Finding the Fourth Proportional to 641,048.09, 961,622.69 and 214,586.42

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Solution

The fourth proportional to 641,048.09, 961,622.69 and 214,586.42 is: 321,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,048.09 : 961,622.69 = 214,586.42 : x
  2. Step 2: Convert to fraction form
    641,048.09/961,622.69 = 214,586.42/x
  3. Step 3: Cross multiply
    641,048.09x = 961,622.69 × 214,586.42
  4. Step 4: Simplify right side
    641,048.09x = 206,351,164,556.82
  5. Step 5: Solve for x
    x = 206,351,164,556.82/641,048.09
  6. Step 6: Final answer
    x = 321,896.55

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1.5x scale

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.