Home / 807,969.91-1,115,006.05-445,406.73

Finding the Fourth Proportional to 807,969.91, 1,115,006.05 and 445,406.73

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Solution

The fourth proportional to 807,969.91, 1,115,006.05 and 445,406.73 is: 614,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,969.91 : 1,115,006.05 = 445,406.73 : x
  2. Step 2: Convert to fraction form
    807,969.91/1,115,006.05 = 445,406.73/x
  3. Step 3: Cross multiply
    807,969.91x = 1,115,006.05 × 445,406.73
  4. Step 4: Simplify right side
    807,969.91x = 496,631,198,660.72
  5. Step 5: Solve for x
    x = 496,631,198,660.72/807,969.91
  6. Step 6: Final answer
    x = 614,665.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.