Home / 2,927,979.61-4,040,572.21-1,638,819.61

Finding the Fourth Proportional to 2,927,979.61, 4,040,572.21 and 1,638,819.61

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Solution

The fourth proportional to 2,927,979.61, 4,040,572.21 and 1,638,819.61 is: 2,261,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,979.61 : 4,040,572.21 = 1,638,819.61 : x
  2. Step 2: Convert to fraction form
    2,927,979.61/4,040,572.21 = 1,638,819.61/x
  3. Step 3: Cross multiply
    2,927,979.61x = 4,040,572.21 × 1,638,819.61
  4. Step 4: Simplify right side
    2,927,979.61x = 6,621,768,973,369.04
  5. Step 5: Solve for x
    x = 6,621,768,973,369.04/2,927,979.61
  6. Step 6: Final answer
    x = 2,261,548.87

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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.