Home / 1,019,172.51-1,528,942.64-419,806.53

Finding the Fourth Proportional to 1,019,172.51, 1,528,942.64 and 419,806.53

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Solution

The fourth proportional to 1,019,172.51, 1,528,942.64 and 419,806.53 is: 629,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,172.51 : 1,528,942.64 = 419,806.53 : x
  2. Step 2: Convert to fraction form
    1,019,172.51/1,528,942.64 = 419,806.53/x
  3. Step 3: Cross multiply
    1,019,172.51x = 1,528,942.64 × 419,806.53
  4. Step 4: Simplify right side
    1,019,172.51x = 641,860,104,267.44
  5. Step 5: Solve for x
    x = 641,860,104,267.44/1,019,172.51
  6. Step 6: Final answer
    x = 629,785.53

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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.