Home / 1,191,869.03-1,787,858.63-393,220.37

Finding the Fourth Proportional to 1,191,869.03, 1,787,858.63 and 393,220.37

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Solution

The fourth proportional to 1,191,869.03, 1,787,858.63 and 393,220.37 is: 589,848.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,869.03 : 1,787,858.63 = 393,220.37 : x
  2. Step 2: Convert to fraction form
    1,191,869.03/1,787,858.63 = 393,220.37/x
  3. Step 3: Cross multiply
    1,191,869.03x = 1,787,858.63 × 393,220.37
  4. Step 4: Simplify right side
    1,191,869.03x = 703,022,431,996.29
  5. Step 5: Solve for x
    x = 703,022,431,996.29/1,191,869.03
  6. Step 6: Final answer
    x = 589,848.73

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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.