Home / 1,678,656.80-2,517,982.05-525,991.60

Finding the Fourth Proportional to 1,678,656.80, 2,517,982.05 and 525,991.60

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Solution

The fourth proportional to 1,678,656.80, 2,517,982.05 and 525,991.60 is: 788,986.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,656.80 : 2,517,982.05 = 525,991.60 : x
  2. Step 2: Convert to fraction form
    1,678,656.80/2,517,982.05 = 525,991.60/x
  3. Step 3: Cross multiply
    1,678,656.80x = 2,517,982.05 × 525,991.60
  4. Step 4: Simplify right side
    1,678,656.80x = 1,324,437,394,660.87
  5. Step 5: Solve for x
    x = 1,324,437,394,660.87/1,678,656.80
  6. Step 6: Final answer
    x = 788,986.41

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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.