Home / 2,638,903.28-3,957,810.60-1,289,680.88

Finding the Fourth Proportional to 2,638,903.28, 3,957,810.60 and 1,289,680.88

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Solution

The fourth proportional to 2,638,903.28, 3,957,810.60 and 1,289,680.88 is: 1,934,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,903.28 : 3,957,810.60 = 1,289,680.88 : x
  2. Step 2: Convert to fraction form
    2,638,903.28/3,957,810.60 = 1,289,680.88/x
  3. Step 3: Cross multiply
    2,638,903.28x = 3,957,810.60 × 1,289,680.88
  4. Step 4: Simplify right side
    2,638,903.28x = 5,104,312,657,481.33
  5. Step 5: Solve for x
    x = 5,104,312,657,481.33/2,638,903.28
  6. Step 6: Final answer
    x = 1,934,255.30

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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.