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Finding the Fourth Proportional to 276,306.60, 414,483.30 and 76,626.96

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Solution

The fourth proportional to 276,306.60, 414,483.30 and 76,626.96 is: 114,946.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,306.60 : 414,483.30 = 76,626.96 : x
  2. Step 2: Convert to fraction form
    276,306.60/414,483.30 = 76,626.96/x
  3. Step 3: Cross multiply
    276,306.60x = 414,483.30 × 76,626.96
  4. Step 4: Simplify right side
    276,306.60x = 31,760,595,249.77
  5. Step 5: Solve for x
    x = 31,760,595,249.77/276,306.60
  6. Step 6: Final answer
    x = 114,946.93

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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.