Home / 838,359.20-1,257,538.80-603,912.80

Finding the Fourth Proportional to 838,359.20, 1,257,538.80 and 603,912.80

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Solution

The fourth proportional to 838,359.20, 1,257,538.80 and 603,912.80 is: 905,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,359.20 : 1,257,538.80 = 603,912.80 : x
  2. Step 2: Convert to fraction form
    838,359.20/1,257,538.80 = 603,912.80/x
  3. Step 3: Cross multiply
    838,359.20x = 1,257,538.80 × 603,912.80
  4. Step 4: Simplify right side
    838,359.20x = 759,443,777,816.64
  5. Step 5: Solve for x
    x = 759,443,777,816.64/838,359.20
  6. Step 6: Final answer
    x = 905,869.20

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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.