Home / 439,711.20-659,566.80-415,216.80

Finding the Fourth Proportional to 439,711.20, 659,566.80 and 415,216.80

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Solution

The fourth proportional to 439,711.20, 659,566.80 and 415,216.80 is: 622,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,711.20 : 659,566.80 = 415,216.80 : x
  2. Step 2: Convert to fraction form
    439,711.20/659,566.80 = 415,216.80/x
  3. Step 3: Cross multiply
    439,711.20x = 659,566.80 × 415,216.80
  4. Step 4: Simplify right side
    439,711.20x = 273,863,216,082.24
  5. Step 5: Solve for x
    x = 273,863,216,082.24/439,711.20
  6. Step 6: Final answer
    x = 622,825.20

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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.