Home / 1,990,871.38-2,747,323.36-1,175,337.76

Finding the Fourth Proportional to 1,990,871.38, 2,747,323.36 and 1,175,337.76

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Solution

The fourth proportional to 1,990,871.38, 2,747,323.36 and 1,175,337.76 is: 1,621,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,871.38 : 2,747,323.36 = 1,175,337.76 : x
  2. Step 2: Convert to fraction form
    1,990,871.38/2,747,323.36 = 1,175,337.76/x
  3. Step 3: Cross multiply
    1,990,871.38x = 2,747,323.36 × 1,175,337.76
  4. Step 4: Simplify right side
    1,990,871.38x = 3,229,032,883,938.07
  5. Step 5: Solve for x
    x = 3,229,032,883,938.07/1,990,871.38
  6. Step 6: Final answer
    x = 1,621,919.38

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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.