Home / 685,690.94-1,024,366.60-443,834.66

Finding the Fourth Proportional to 685,690.94, 1,024,366.60 and 443,834.66

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Solution

The fourth proportional to 685,690.94, 1,024,366.60 and 443,834.66 is: 663,052.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,690.94 : 1,024,366.60 = 443,834.66 : x
  2. Step 2: Convert to fraction form
    685,690.94/1,024,366.60 = 443,834.66/x
  3. Step 3: Cross multiply
    685,690.94x = 1,024,366.60 × 443,834.66
  4. Step 4: Simplify right side
    685,690.94x = 454,649,401,626.36
  5. Step 5: Solve for x
    x = 454,649,401,626.36/685,690.94
  6. Step 6: Final answer
    x = 663,052.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.