Home / 1,331,986.30-1,996,339.20-905,521.30

Finding the Fourth Proportional to 1,331,986.30, 1,996,339.20 and 905,521.30

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Solution

The fourth proportional to 1,331,986.30, 1,996,339.20 and 905,521.30 is: 1,357,166.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,986.30 : 1,996,339.20 = 905,521.30 : x
  2. Step 2: Convert to fraction form
    1,331,986.30/1,996,339.20 = 905,521.30/x
  3. Step 3: Cross multiply
    1,331,986.30x = 1,996,339.20 × 905,521.30
  4. Step 4: Simplify right side
    1,331,986.30x = 1,807,727,667,624.96
  5. Step 5: Solve for x
    x = 1,807,727,667,624.96/1,331,986.30
  6. Step 6: Final answer
    x = 1,357,166.86

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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.