Home / 663,136.40-993,538.20-544,163.60

Finding the Fourth Proportional to 663,136.40, 993,538.20 and 544,163.60

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Solution

The fourth proportional to 663,136.40, 993,538.20 and 544,163.60 is: 815,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,136.40 : 993,538.20 = 544,163.60 : x
  2. Step 2: Convert to fraction form
    663,136.40/993,538.20 = 544,163.60/x
  3. Step 3: Cross multiply
    663,136.40x = 993,538.20 × 544,163.60
  4. Step 4: Simplify right side
    663,136.40x = 540,647,323,649.52
  5. Step 5: Solve for x
    x = 540,647,323,649.52/663,136.40
  6. Step 6: Final answer
    x = 815,288.26

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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.