Home / 2,169,379.90-2,993,679.45-1,189,285.43

Finding the Fourth Proportional to 2,169,379.90, 2,993,679.45 and 1,189,285.43

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Solution

The fourth proportional to 2,169,379.90, 2,993,679.45 and 1,189,285.43 is: 1,641,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169,379.90 : 2,993,679.45 = 1,189,285.43 : x
  2. Step 2: Convert to fraction form
    2,169,379.90/2,993,679.45 = 1,189,285.43/x
  3. Step 3: Cross multiply
    2,169,379.90x = 2,993,679.45 × 1,189,285.43
  4. Step 4: Simplify right side
    2,169,379.90x = 3,560,339,337,007.02
  5. Step 5: Solve for x
    x = 3,560,339,337,007.02/2,169,379.90
  6. Step 6: Final answer
    x = 1,641,178.35

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1.5x scale

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.