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Finding the Fourth Proportional to 527,147.56, 790,722.94 and 127,786.76

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Solution

The fourth proportional to 527,147.56, 790,722.94 and 127,786.76 is: 191,680.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,147.56 : 790,722.94 = 127,786.76 : x
  2. Step 2: Convert to fraction form
    527,147.56/790,722.94 = 127,786.76/x
  3. Step 3: Cross multiply
    527,147.56x = 790,722.94 × 127,786.76
  4. Step 4: Simplify right side
    527,147.56x = 101,043,922,560.27
  5. Step 5: Solve for x
    x = 101,043,922,560.27/527,147.56
  6. Step 6: Final answer
    x = 191,680.53

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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.