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Finding the Fourth Proportional to 397,170.04, 548,094.62 and 218,322.04

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Solution

The fourth proportional to 397,170.04, 548,094.62 and 218,322.04 is: 301,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,170.04 : 548,094.62 = 218,322.04 : x
  2. Step 2: Convert to fraction form
    397,170.04/548,094.62 = 218,322.04/x
  3. Step 3: Cross multiply
    397,170.04x = 548,094.62 × 218,322.04
  4. Step 4: Simplify right side
    397,170.04x = 119,661,135,551.43
  5. Step 5: Solve for x
    x = 119,661,135,551.43/397,170.04
  6. Step 6: Final answer
    x = 301,284.40

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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.