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Finding the Fourth Proportional to 450,704.75, 622,007.06 and 257,116.73

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Solution

The fourth proportional to 450,704.75, 622,007.06 and 257,116.73 is: 354,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,704.75 : 622,007.06 = 257,116.73 : x
  2. Step 2: Convert to fraction form
    450,704.75/622,007.06 = 257,116.73/x
  3. Step 3: Cross multiply
    450,704.75x = 622,007.06 × 257,116.73
  4. Step 4: Simplify right side
    450,704.75x = 159,928,416,908.50
  5. Step 5: Solve for x
    x = 159,928,416,908.50/450,704.75
  6. Step 6: Final answer
    x = 354,840.77

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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.