Home / 1,940,126.80-2,910,190.20-1,865,477.20

Finding the Fourth Proportional to 1,940,126.80, 2,910,190.20 and 1,865,477.20

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Solution

The fourth proportional to 1,940,126.80, 2,910,190.20 and 1,865,477.20 is: 2,798,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,126.80 : 2,910,190.20 = 1,865,477.20 : x
  2. Step 2: Convert to fraction form
    1,940,126.80/2,910,190.20 = 1,865,477.20/x
  3. Step 3: Cross multiply
    1,940,126.80x = 2,910,190.20 × 1,865,477.20
  4. Step 4: Simplify right side
    1,940,126.80x = 5,428,893,465,763.44
  5. Step 5: Solve for x
    x = 5,428,893,465,763.44/1,940,126.80
  6. Step 6: Final answer
    x = 2,798,215.80

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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.