Home / 339,583.20-509,374.80-171,621.60

Finding the Fourth Proportional to 339,583.20, 509,374.80 and 171,621.60

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Solution

The fourth proportional to 339,583.20, 509,374.80 and 171,621.60 is: 257,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,583.20 : 509,374.80 = 171,621.60 : x
  2. Step 2: Convert to fraction form
    339,583.20/509,374.80 = 171,621.60/x
  3. Step 3: Cross multiply
    339,583.20x = 509,374.80 × 171,621.60
  4. Step 4: Simplify right side
    339,583.20x = 87,419,718,175.68
  5. Step 5: Solve for x
    x = 87,419,718,175.68/339,583.20
  6. Step 6: Final answer
    x = 257,432.40

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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.