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Finding the Fourth Proportional to 303,056.33, 455,581.07 and 281,134.36

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Solution

The fourth proportional to 303,056.33, 455,581.07 and 281,134.36 is: 422,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,056.33 : 455,581.07 = 281,134.36 : x
  2. Step 2: Convert to fraction form
    303,056.33/455,581.07 = 281,134.36/x
  3. Step 3: Cross multiply
    303,056.33x = 455,581.07 × 281,134.36
  4. Step 4: Simplify right side
    303,056.33x = 128,079,488,858.99
  5. Step 5: Solve for x
    x = 128,079,488,858.99/303,056.33
  6. Step 6: Final answer
    x = 422,626.01

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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.