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Finding the Fourth Proportional to 412,858.80, 619,288.20 and 246,970.80

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Solution

The fourth proportional to 412,858.80, 619,288.20 and 246,970.80 is: 370,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,858.80 : 619,288.20 = 246,970.80 : x
  2. Step 2: Convert to fraction form
    412,858.80/619,288.20 = 246,970.80/x
  3. Step 3: Cross multiply
    412,858.80x = 619,288.20 × 246,970.80
  4. Step 4: Simplify right side
    412,858.80x = 152,946,102,184.56
  5. Step 5: Solve for x
    x = 152,946,102,184.56/412,858.80
  6. Step 6: Final answer
    x = 370,456.20

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Similar ratio
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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.