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Finding the Fourth Proportional to 527,086.22, 790,776.96 and 211,764.56

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Solution

The fourth proportional to 527,086.22, 790,776.96 and 211,764.56 is: 317,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,086.22 : 790,776.96 = 211,764.56 : x
  2. Step 2: Convert to fraction form
    527,086.22/790,776.96 = 211,764.56/x
  3. Step 3: Cross multiply
    527,086.22x = 790,776.96 × 211,764.56
  4. Step 4: Simplify right side
    527,086.22x = 167,458,533,933.72
  5. Step 5: Solve for x
    x = 167,458,533,933.72/527,086.22
  6. Step 6: Final answer
    x = 317,706.15

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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.