Home / 431,664.40-647,650.20-416,304.40

Finding the Fourth Proportional to 431,664.40, 647,650.20 and 416,304.40

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Solution

The fourth proportional to 431,664.40, 647,650.20 and 416,304.40 is: 624,604.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,664.40 : 647,650.20 = 416,304.40 : x
  2. Step 2: Convert to fraction form
    431,664.40/647,650.20 = 416,304.40/x
  3. Step 3: Cross multiply
    431,664.40x = 647,650.20 × 416,304.40
  4. Step 4: Simplify right side
    431,664.40x = 269,619,627,920.88
  5. Step 5: Solve for x
    x = 269,619,627,920.88/431,664.40
  6. Step 6: Final answer
    x = 624,604.73

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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.