Home / 1,920,323.69-2,879,852.32-640,578.50

Finding the Fourth Proportional to 1,920,323.69, 2,879,852.32 and 640,578.50

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Solution

The fourth proportional to 1,920,323.69, 2,879,852.32 and 640,578.50 is: 960,656.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,323.69 : 2,879,852.32 = 640,578.50 : x
  2. Step 2: Convert to fraction form
    1,920,323.69/2,879,852.32 = 640,578.50/x
  3. Step 3: Cross multiply
    1,920,323.69x = 2,879,852.32 × 640,578.50
  4. Step 4: Simplify right side
    1,920,323.69x = 1,844,771,476,164.23
  5. Step 5: Solve for x
    x = 1,844,771,476,164.23/1,920,323.69
  6. Step 6: Final answer
    x = 960,656.52

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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.