Home / 1,280,163.80-1,921,190.58-606,243.80

Finding the Fourth Proportional to 1,280,163.80, 1,921,190.58 and 606,243.80

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Solution

The fourth proportional to 1,280,163.80, 1,921,190.58 and 606,243.80 is: 909,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,163.80 : 1,921,190.58 = 606,243.80 : x
  2. Step 2: Convert to fraction form
    1,280,163.80/1,921,190.58 = 606,243.80/x
  3. Step 3: Cross multiply
    1,280,163.80x = 1,921,190.58 × 606,243.80
  4. Step 4: Simplify right side
    1,280,163.80x = 1,164,709,882,546.38
  5. Step 5: Solve for x
    x = 1,164,709,882,546.38/1,280,163.80
  6. Step 6: Final answer
    x = 909,813.17

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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.