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Finding the Fourth Proportional to 606,529.08, 836,639.24 and 388,664.41

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Solution

The fourth proportional to 606,529.08, 836,639.24 and 388,664.41 is: 536,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,529.08 : 836,639.24 = 388,664.41 : x
  2. Step 2: Convert to fraction form
    606,529.08/836,639.24 = 388,664.41/x
  3. Step 3: Cross multiply
    606,529.08x = 836,639.24 × 388,664.41
  4. Step 4: Simplify right side
    606,529.08x = 325,171,900,393.60
  5. Step 5: Solve for x
    x = 325,171,900,393.60/606,529.08
  6. Step 6: Final answer
    x = 536,119.22

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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.