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Finding the Fourth Proportional to 516,858.77, 775,288.19 and 161,900.44

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Solution

The fourth proportional to 516,858.77, 775,288.19 and 161,900.44 is: 242,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,858.77 : 775,288.19 = 161,900.44 : x
  2. Step 2: Convert to fraction form
    516,858.77/775,288.19 = 161,900.44/x
  3. Step 3: Cross multiply
    516,858.77x = 775,288.19 × 161,900.44
  4. Step 4: Simplify right side
    516,858.77x = 125,519,497,554.33
  5. Step 5: Solve for x
    x = 125,519,497,554.33/516,858.77
  6. Step 6: Final answer
    x = 242,850.67

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Similar ratio
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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.