Home / 1,920,303.32-2,879,821.79-640,558.13

Finding the Fourth Proportional to 1,920,303.32, 2,879,821.79 and 640,558.13

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Solution

The fourth proportional to 1,920,303.32, 2,879,821.79 and 640,558.13 is: 960,625.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,303.32 : 2,879,821.79 = 640,558.13 : x
  2. Step 2: Convert to fraction form
    1,920,303.32/2,879,821.79 = 640,558.13/x
  3. Step 3: Cross multiply
    1,920,303.32x = 2,879,821.79 × 640,558.13
  4. Step 4: Simplify right side
    1,920,303.32x = 1,844,693,245,335.85
  5. Step 5: Solve for x
    x = 1,844,693,245,335.85/1,920,303.32
  6. Step 6: Final answer
    x = 960,625.98

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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.