Home / 1,378,766.80-1,898,779.08-996,187.60

Finding the Fourth Proportional to 1,378,766.80, 1,898,779.08 and 996,187.60

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Solution

The fourth proportional to 1,378,766.80, 1,898,779.08 and 996,187.60 is: 1,371,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,766.80 : 1,898,779.08 = 996,187.60 : x
  2. Step 2: Convert to fraction form
    1,378,766.80/1,898,779.08 = 996,187.60/x
  3. Step 3: Cross multiply
    1,378,766.80x = 1,898,779.08 × 996,187.60
  4. Step 4: Simplify right side
    1,378,766.80x = 1,891,540,174,635.41
  5. Step 5: Solve for x
    x = 1,891,540,174,635.41/1,378,766.80
  6. Step 6: Final answer
    x = 1,371,907.25

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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.