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Finding the Fourth Proportional to 527,215.74, 790,660.02 and 190,212.56

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Solution

The fourth proportional to 527,215.74, 790,660.02 and 190,212.56 is: 285,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,215.74 : 790,660.02 = 190,212.56 : x
  2. Step 2: Convert to fraction form
    527,215.74/790,660.02 = 190,212.56/x
  3. Step 3: Cross multiply
    527,215.74x = 790,660.02 × 190,212.56
  4. Step 4: Simplify right side
    527,215.74x = 150,393,466,493.85
  5. Step 5: Solve for x
    x = 150,393,466,493.85/527,215.74
  6. Step 6: Final answer
    x = 285,259.82

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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.