Home / 1,285,474.80-1,930,285.80-866,607.60

Finding the Fourth Proportional to 1,285,474.80, 1,930,285.80 and 866,607.60

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Solution

The fourth proportional to 1,285,474.80, 1,930,285.80 and 866,607.60 is: 1,301,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,474.80 : 1,930,285.80 = 866,607.60 : x
  2. Step 2: Convert to fraction form
    1,285,474.80/1,930,285.80 = 866,607.60/x
  3. Step 3: Cross multiply
    1,285,474.80x = 1,930,285.80 × 866,607.60
  4. Step 4: Simplify right side
    1,285,474.80x = 1,672,800,344,452.08
  5. Step 5: Solve for x
    x = 1,672,800,344,452.08/1,285,474.80
  6. Step 6: Final answer
    x = 1,301,309.33

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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.