Home / 289,559.20-434,136.30-171,169.60

Finding the Fourth Proportional to 289,559.20, 434,136.30 and 171,169.60

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Solution

The fourth proportional to 289,559.20, 434,136.30 and 171,169.60 is: 256,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,559.20 : 434,136.30 = 171,169.60 : x
  2. Step 2: Convert to fraction form
    289,559.20/434,136.30 = 171,169.60/x
  3. Step 3: Cross multiply
    289,559.20x = 434,136.30 × 171,169.60
  4. Step 4: Simplify right side
    289,559.20x = 74,310,936,816.48
  5. Step 5: Solve for x
    x = 74,310,936,816.48/289,559.20
  6. Step 6: Final answer
    x = 256,634.69

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1.5x scale

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.