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Finding the Fourth Proportional to 450,969.36, 622,183.20 and 257,237.88

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Solution

The fourth proportional to 450,969.36, 622,183.20 and 257,237.88 is: 354,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,969.36 : 622,183.20 = 257,237.88 : x
  2. Step 2: Convert to fraction form
    450,969.36/622,183.20 = 257,237.88/x
  3. Step 3: Cross multiply
    450,969.36x = 622,183.20 × 257,237.88
  4. Step 4: Simplify right side
    450,969.36x = 160,049,087,339.62
  5. Step 5: Solve for x
    x = 160,049,087,339.62/450,969.36
  6. Step 6: Final answer
    x = 354,900.14

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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.