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Finding the Fourth Proportional to 527,228.60, 790,679.32 and 190,225.56

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Solution

The fourth proportional to 527,228.60, 790,679.32 and 190,225.56 is: 285,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,228.60 : 790,679.32 = 190,225.56 : x
  2. Step 2: Convert to fraction form
    527,228.60/790,679.32 = 190,225.56/x
  3. Step 3: Cross multiply
    527,228.60x = 790,679.32 × 190,225.56
  4. Step 4: Simplify right side
    527,228.60x = 150,407,419,986.92
  5. Step 5: Solve for x
    x = 150,407,419,986.92/527,228.60
  6. Step 6: Final answer
    x = 285,279.33

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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.