Home / 1,019,173.26-1,528,943.76-419,807.28

Finding the Fourth Proportional to 1,019,173.26, 1,528,943.76 and 419,807.28

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Solution

The fourth proportional to 1,019,173.26, 1,528,943.76 and 419,807.28 is: 629,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,173.26 : 1,528,943.76 = 419,807.28 : x
  2. Step 2: Convert to fraction form
    1,019,173.26/1,528,943.76 = 419,807.28/x
  3. Step 3: Cross multiply
    1,019,173.26x = 1,528,943.76 × 419,807.28
  4. Step 4: Simplify right side
    1,019,173.26x = 641,861,721,158.57
  5. Step 5: Solve for x
    x = 641,861,721,158.57/1,019,173.26
  6. Step 6: Final answer
    x = 629,786.66

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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.