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Finding the Fourth Proportional to 539,123.75, 809,183.62 and 273,071.10

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Solution

The fourth proportional to 539,123.75, 809,183.62 and 273,071.10 is: 409,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,123.75 : 809,183.62 = 273,071.10 : x
  2. Step 2: Convert to fraction form
    539,123.75/809,183.62 = 273,071.10/x
  3. Step 3: Cross multiply
    539,123.75x = 809,183.62 × 273,071.10
  4. Step 4: Simplify right side
    539,123.75x = 220,964,660,039.50
  5. Step 5: Solve for x
    x = 220,964,660,039.50/539,123.75
  6. Step 6: Final answer
    x = 409,858.89

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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.