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Finding the Fourth Proportional to 437,976.60, 656,964.90 and 367,117.80

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Solution

The fourth proportional to 437,976.60, 656,964.90 and 367,117.80 is: 550,676.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,976.60 : 656,964.90 = 367,117.80 : x
  2. Step 2: Convert to fraction form
    437,976.60/656,964.90 = 367,117.80/x
  3. Step 3: Cross multiply
    437,976.60x = 656,964.90 × 367,117.80
  4. Step 4: Simplify right side
    437,976.60x = 241,183,508,765.22
  5. Step 5: Solve for x
    x = 241,183,508,765.22/437,976.60
  6. Step 6: Final answer
    x = 550,676.70

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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.