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Finding the Fourth Proportional to 397,244.94, 548,196.84 and 215,956.68

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Solution

The fourth proportional to 397,244.94, 548,196.84 and 215,956.68 is: 298,019.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,244.94 : 548,196.84 = 215,956.68 : x
  2. Step 2: Convert to fraction form
    397,244.94/548,196.84 = 215,956.68/x
  3. Step 3: Cross multiply
    397,244.94x = 548,196.84 × 215,956.68
  4. Step 4: Simplify right side
    397,244.94x = 118,386,769,552.89
  5. Step 5: Solve for x
    x = 118,386,769,552.89/397,244.94
  6. Step 6: Final answer
    x = 298,019.58

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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.