Home / 685,833.16-1,024,578.41-443,976.76

Finding the Fourth Proportional to 685,833.16, 1,024,578.41 and 443,976.76

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Solution

The fourth proportional to 685,833.16, 1,024,578.41 and 443,976.76 is: 663,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,833.16 : 1,024,578.41 = 443,976.76 : x
  2. Step 2: Convert to fraction form
    685,833.16/1,024,578.41 = 443,976.76/x
  3. Step 3: Cross multiply
    685,833.16x = 1,024,578.41 × 443,976.76
  4. Step 4: Simplify right side
    685,833.16x = 454,889,002,837.75
  5. Step 5: Solve for x
    x = 454,889,002,837.75/685,833.16
  6. Step 6: Final answer
    x = 663,264.81

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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.