Home / 543,621.20-814,913.40-423,611.60

Finding the Fourth Proportional to 543,621.20, 814,913.40 and 423,611.60

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Solution

The fourth proportional to 543,621.20, 814,913.40 and 423,611.60 is: 635,013.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,621.20 : 814,913.40 = 423,611.60 : x
  2. Step 2: Convert to fraction form
    543,621.20/814,913.40 = 423,611.60/x
  3. Step 3: Cross multiply
    543,621.20x = 814,913.40 × 423,611.60
  4. Step 4: Simplify right side
    543,621.20x = 345,206,769,235.44
  5. Step 5: Solve for x
    x = 345,206,769,235.44/543,621.20
  6. Step 6: Final answer
    x = 635,013.44

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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.