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Finding the Fourth Proportional to 447,361.68, 617,158.47 and 302,120.28

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Solution

The fourth proportional to 447,361.68, 617,158.47 and 302,120.28 is: 416,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,361.68 : 617,158.47 = 302,120.28 : x
  2. Step 2: Convert to fraction form
    447,361.68/617,158.47 = 302,120.28/x
  3. Step 3: Cross multiply
    447,361.68x = 617,158.47 × 302,120.28
  4. Step 4: Simplify right side
    447,361.68x = 186,456,089,760.77
  5. Step 5: Solve for x
    x = 186,456,089,760.77/447,361.68
  6. Step 6: Final answer
    x = 416,790.48

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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.