Home / 434,049.20-650,855.10-256,610.60

Finding the Fourth Proportional to 434,049.20, 650,855.10 and 256,610.60

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Solution

The fourth proportional to 434,049.20, 650,855.10 and 256,610.60 is: 384,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,049.20 : 650,855.10 = 256,610.60 : x
  2. Step 2: Convert to fraction form
    434,049.20/650,855.10 = 256,610.60/x
  3. Step 3: Cross multiply
    434,049.20x = 650,855.10 × 256,610.60
  4. Step 4: Simplify right side
    434,049.20x = 167,016,317,724.06
  5. Step 5: Solve for x
    x = 167,016,317,724.06/434,049.20
  6. Step 6: Final answer
    x = 384,786.60

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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.