Home / 1,920,083.38-2,879,160.80-640,237.78

Finding the Fourth Proportional to 1,920,083.38, 2,879,160.80 and 640,237.78

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Solution

The fourth proportional to 1,920,083.38, 2,879,160.80 and 640,237.78 is: 960,035.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,083.38 : 2,879,160.80 = 640,237.78 : x
  2. Step 2: Convert to fraction form
    1,920,083.38/2,879,160.80 = 640,237.78/x
  3. Step 3: Cross multiply
    1,920,083.38x = 2,879,160.80 × 640,237.78
  4. Step 4: Simplify right side
    1,920,083.38x = 1,843,347,518,855.02
  5. Step 5: Solve for x
    x = 1,843,347,518,855.02/1,920,083.38
  6. Step 6: Final answer
    x = 960,035.14

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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.