Home / 1,911,751.07-2,638,272.53-1,040,642.57

Finding the Fourth Proportional to 1,911,751.07, 2,638,272.53 and 1,040,642.57

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Solution

The fourth proportional to 1,911,751.07, 2,638,272.53 and 1,040,642.57 is: 1,436,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,751.07 : 2,638,272.53 = 1,040,642.57 : x
  2. Step 2: Convert to fraction form
    1,911,751.07/2,638,272.53 = 1,040,642.57/x
  3. Step 3: Cross multiply
    1,911,751.07x = 2,638,272.53 × 1,040,642.57
  4. Step 4: Simplify right side
    1,911,751.07x = 2,745,498,715,176.89
  5. Step 5: Solve for x
    x = 2,745,498,715,176.89/1,911,751.07
  6. Step 6: Final answer
    x = 1,436,117.27

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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.