Home / 1,085,896.80-1,630,400.40-613,504.80

Finding the Fourth Proportional to 1,085,896.80, 1,630,400.40 and 613,504.80

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Solution

The fourth proportional to 1,085,896.80, 1,630,400.40 and 613,504.80 is: 921,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,896.80 : 1,630,400.40 = 613,504.80 : x
  2. Step 2: Convert to fraction form
    1,085,896.80/1,630,400.40 = 613,504.80/x
  3. Step 3: Cross multiply
    1,085,896.80x = 1,630,400.40 × 613,504.80
  4. Step 4: Simplify right side
    1,085,896.80x = 1,000,258,471,321.92
  5. Step 5: Solve for x
    x = 1,000,258,471,321.92/1,085,896.80
  6. Step 6: Final answer
    x = 921,135.85

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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.