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Finding the Fourth Proportional to 395,990.70, 593,986.05 and 246,399.90

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Solution

The fourth proportional to 395,990.70, 593,986.05 and 246,399.90 is: 369,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,990.70 : 593,986.05 = 246,399.90 : x
  2. Step 2: Convert to fraction form
    395,990.70/593,986.05 = 246,399.90/x
  3. Step 3: Cross multiply
    395,990.70x = 593,986.05 × 246,399.90
  4. Step 4: Simplify right side
    395,990.70x = 146,358,103,321.40
  5. Step 5: Solve for x
    x = 146,358,103,321.40/395,990.70
  6. Step 6: Final answer
    x = 369,599.85

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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.