Home / 1,920,081.38-2,879,157.79-640,235.77

Finding the Fourth Proportional to 1,920,081.38, 2,879,157.79 and 640,235.77

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Solution

The fourth proportional to 1,920,081.38, 2,879,157.79 and 640,235.77 is: 960,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,081.38 : 2,879,157.79 = 640,235.77 : x
  2. Step 2: Convert to fraction form
    1,920,081.38/2,879,157.79 = 640,235.77/x
  3. Step 3: Cross multiply
    1,920,081.38x = 2,879,157.79 × 640,235.77
  4. Step 4: Simplify right side
    1,920,081.38x = 1,843,339,804,632.15
  5. Step 5: Solve for x
    x = 1,843,339,804,632.15/1,920,081.38
  6. Step 6: Final answer
    x = 960,032.12

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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.