Home / 1,911,860.70-2,640,731.67-1,401,755.10

Finding the Fourth Proportional to 1,911,860.70, 2,640,731.67 and 1,401,755.10

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Solution

The fourth proportional to 1,911,860.70, 2,640,731.67 and 1,401,755.10 is: 1,936,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,860.70 : 2,640,731.67 = 1,401,755.10 : x
  2. Step 2: Convert to fraction form
    1,911,860.70/2,640,731.67 = 1,401,755.10/x
  3. Step 3: Cross multiply
    1,911,860.70x = 2,640,731.67 × 1,401,755.10
  4. Step 4: Simplify right side
    1,911,860.70x = 3,701,659,086,154.02
  5. Step 5: Solve for x
    x = 3,701,659,086,154.02/1,911,860.70
  6. Step 6: Final answer
    x = 1,936,155.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.