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Finding the Fourth Proportional to 662,588.80, 993,891.84 and 189,289.60

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Solution

The fourth proportional to 662,588.80, 993,891.84 and 189,289.60 is: 283,936.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,588.80 : 993,891.84 = 189,289.60 : x
  2. Step 2: Convert to fraction form
    662,588.80/993,891.84 = 189,289.60/x
  3. Step 3: Cross multiply
    662,588.80x = 993,891.84 × 189,289.60
  4. Step 4: Simplify right side
    662,588.80x = 188,133,388,836.86
  5. Step 5: Solve for x
    x = 188,133,388,836.86/662,588.80
  6. Step 6: Final answer
    x = 283,936.87

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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.