Home / 2,661,266.95-3,991,900.01-639,510.90

Finding the Fourth Proportional to 2,661,266.95, 3,991,900.01 and 639,510.90

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Solution

The fourth proportional to 2,661,266.95, 3,991,900.01 and 639,510.90 is: 959,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,266.95 : 3,991,900.01 = 639,510.90 : x
  2. Step 2: Convert to fraction form
    2,661,266.95/3,991,900.01 = 639,510.90/x
  3. Step 3: Cross multiply
    2,661,266.95x = 3,991,900.01 × 639,510.90
  4. Step 4: Simplify right side
    2,661,266.95x = 2,552,863,568,105.11
  5. Step 5: Solve for x
    x = 2,552,863,568,105.11/2,661,266.95
  6. Step 6: Final answer
    x = 959,266.25

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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.