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Finding the Fourth Proportional to 539,954.73, 745,183.67 and 298,263.69

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Solution

The fourth proportional to 539,954.73, 745,183.67 and 298,263.69 is: 411,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,954.73 : 745,183.67 = 298,263.69 : x
  2. Step 2: Convert to fraction form
    539,954.73/745,183.67 = 298,263.69/x
  3. Step 3: Cross multiply
    539,954.73x = 745,183.67 × 298,263.69
  4. Step 4: Simplify right side
    539,954.73x = 222,261,229,650.62
  5. Step 5: Solve for x
    x = 222,261,229,650.62/539,954.73
  6. Step 6: Final answer
    x = 411,629.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.