Home / 1,328,563.20-1,993,136.40-654,967.20

Finding the Fourth Proportional to 1,328,563.20, 1,993,136.40 and 654,967.20

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Solution

The fourth proportional to 1,328,563.20, 1,993,136.40 and 654,967.20 is: 982,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,563.20 : 1,993,136.40 = 654,967.20 : x
  2. Step 2: Convert to fraction form
    1,328,563.20/1,993,136.40 = 654,967.20/x
  3. Step 3: Cross multiply
    1,328,563.20x = 1,993,136.40 × 654,967.20
  4. Step 4: Simplify right side
    1,328,563.20x = 1,305,438,967,126.08
  5. Step 5: Solve for x
    x = 1,305,438,967,126.08/1,328,563.20
  6. Step 6: Final answer
    x = 982,594.56

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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.