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Finding the Fourth Proportional to 398,643.37, 598,245.27 and 360,529.09

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Solution

The fourth proportional to 398,643.37, 598,245.27 and 360,529.09 is: 541,047.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,643.37 : 598,245.27 = 360,529.09 : x
  2. Step 2: Convert to fraction form
    398,643.37/598,245.27 = 360,529.09/x
  3. Step 3: Cross multiply
    398,643.37x = 598,245.27 × 360,529.09
  4. Step 4: Simplify right side
    398,643.37x = 215,684,822,789.90
  5. Step 5: Solve for x
    x = 215,684,822,789.90/398,643.37
  6. Step 6: Final answer
    x = 541,047.06

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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.