Home / 289,537.20-434,103.30-171,147.60

Finding the Fourth Proportional to 289,537.20, 434,103.30 and 171,147.60

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Solution

The fourth proportional to 289,537.20, 434,103.30 and 171,147.60 is: 256,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,537.20 : 434,103.30 = 171,147.60 : x
  2. Step 2: Convert to fraction form
    289,537.20/434,103.30 = 171,147.60/x
  3. Step 3: Cross multiply
    289,537.20x = 434,103.30 × 171,147.60
  4. Step 4: Simplify right side
    289,537.20x = 74,295,737,947.08
  5. Step 5: Solve for x
    x = 74,295,737,947.08/289,537.20
  6. Step 6: Final answer
    x = 256,601.70

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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.