Home / 1,219,284.05-1,682,611.73-668,019.32

Finding the Fourth Proportional to 1,219,284.05, 1,682,611.73 and 668,019.32

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Solution

The fourth proportional to 1,219,284.05, 1,682,611.73 and 668,019.32 is: 921,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,284.05 : 1,682,611.73 = 668,019.32 : x
  2. Step 2: Convert to fraction form
    1,219,284.05/1,682,611.73 = 668,019.32/x
  3. Step 3: Cross multiply
    1,219,284.05x = 1,682,611.73 × 668,019.32
  4. Step 4: Simplify right side
    1,219,284.05x = 1,124,017,140,760.33
  5. Step 5: Solve for x
    x = 1,124,017,140,760.33/1,219,284.05
  6. Step 6: Final answer
    x = 921,866.52

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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.