Home / 678,546.92-1,022,585.89-611,163.40

Finding the Fourth Proportional to 678,546.92, 1,022,585.89 and 611,163.40

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Solution

The fourth proportional to 678,546.92, 1,022,585.89 and 611,163.40 is: 921,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,546.92 : 1,022,585.89 = 611,163.40 : x
  2. Step 2: Convert to fraction form
    678,546.92/1,022,585.89 = 611,163.40/x
  3. Step 3: Cross multiply
    678,546.92x = 1,022,585.89 × 611,163.40
  4. Step 4: Simplify right side
    678,546.92x = 624,967,069,324.43
  5. Step 5: Solve for x
    x = 624,967,069,324.43/678,546.92
  6. Step 6: Final answer
    x = 921,037.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.