Home / 1,916,679.80-2,645,868.30-1,237,947.32

Finding the Fourth Proportional to 1,916,679.80, 2,645,868.30 and 1,237,947.32

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Solution

The fourth proportional to 1,916,679.80, 2,645,868.30 and 1,237,947.32 is: 1,708,916.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,679.80 : 2,645,868.30 = 1,237,947.32 : x
  2. Step 2: Convert to fraction form
    1,916,679.80/2,645,868.30 = 1,237,947.32/x
  3. Step 3: Cross multiply
    1,916,679.80x = 2,645,868.30 × 1,237,947.32
  4. Step 4: Simplify right side
    1,916,679.80x = 3,275,445,571,057.96
  5. Step 5: Solve for x
    x = 3,275,445,571,057.96/1,916,679.80
  6. Step 6: Final answer
    x = 1,708,916.41

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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.