Home / 393,025.20-589,652.60-126,779.80

Finding the Fourth Proportional to 393,025.20, 589,652.60 and 126,779.80

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Solution

The fourth proportional to 393,025.20, 589,652.60 and 126,779.80 is: 190,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,025.20 : 589,652.60 = 126,779.80 : x
  2. Step 2: Convert to fraction form
    393,025.20/589,652.60 = 126,779.80/x
  3. Step 3: Cross multiply
    393,025.20x = 589,652.60 × 126,779.80
  4. Step 4: Simplify right side
    393,025.20x = 74,756,038,697.48
  5. Step 5: Solve for x
    x = 74,756,038,697.48/393,025.20
  6. Step 6: Final answer
    x = 190,206.73

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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.