Home / 2,189,512.56-3,020,669.28-1,271,584.80

Finding the Fourth Proportional to 2,189,512.56, 3,020,669.28 and 1,271,584.80

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Solution

The fourth proportional to 2,189,512.56, 3,020,669.28 and 1,271,584.80 is: 1,754,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,512.56 : 3,020,669.28 = 1,271,584.80 : x
  2. Step 2: Convert to fraction form
    2,189,512.56/3,020,669.28 = 1,271,584.80/x
  3. Step 3: Cross multiply
    2,189,512.56x = 3,020,669.28 × 1,271,584.80
  4. Step 4: Simplify right side
    2,189,512.56x = 3,841,037,142,274.94
  5. Step 5: Solve for x
    x = 3,841,037,142,274.94/2,189,512.56
  6. Step 6: Final answer
    x = 1,754,288.70

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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.