Home / 3,900,999.72-5,381,025.64-2,576,431.56

Finding the Fourth Proportional to 3,900,999.72, 5,381,025.64 and 2,576,431.56

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Solution

The fourth proportional to 3,900,999.72, 5,381,025.64 and 2,576,431.56 is: 3,553,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,999.72 : 5,381,025.64 = 2,576,431.56 : x
  2. Step 2: Convert to fraction form
    3,900,999.72/5,381,025.64 = 2,576,431.56/x
  3. Step 3: Cross multiply
    3,900,999.72x = 5,381,025.64 × 2,576,431.56
  4. Step 4: Simplify right side
    3,900,999.72x = 13,863,844,284,065.20
  5. Step 5: Solve for x
    x = 13,863,844,284,065.20/3,900,999.72
  6. Step 6: Final answer
    x = 3,553,920.86

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1.5x scale

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.