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Finding the Fourth Proportional to 264,991.55, 396,568.77 and 253,969.07

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Solution

The fourth proportional to 264,991.55, 396,568.77 and 253,969.07 is: 380,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,991.55 : 396,568.77 = 253,969.07 : x
  2. Step 2: Convert to fraction form
    264,991.55/396,568.77 = 253,969.07/x
  3. Step 3: Cross multiply
    264,991.55x = 396,568.77 × 253,969.07
  4. Step 4: Simplify right side
    264,991.55x = 100,716,199,725.10
  5. Step 5: Solve for x
    x = 100,716,199,725.10/264,991.55
  6. Step 6: Final answer
    x = 380,073.26

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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.