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Finding the Fourth Proportional to 331,159.70, 496,739.55 and 296,945.30

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Solution

The fourth proportional to 331,159.70, 496,739.55 and 296,945.30 is: 445,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,159.70 : 496,739.55 = 296,945.30 : x
  2. Step 2: Convert to fraction form
    331,159.70/496,739.55 = 296,945.30/x
  3. Step 3: Cross multiply
    331,159.70x = 496,739.55 × 296,945.30
  4. Step 4: Simplify right side
    331,159.70x = 147,504,474,696.62
  5. Step 5: Solve for x
    x = 147,504,474,696.62/331,159.70
  6. Step 6: Final answer
    x = 445,417.95

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Double scale
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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.