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Finding the Fourth Proportional to 358,634.68, 494,919.09 and 197,490.37

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Solution

The fourth proportional to 358,634.68, 494,919.09 and 197,490.37 is: 272,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,634.68 : 494,919.09 = 197,490.37 : x
  2. Step 2: Convert to fraction form
    358,634.68/494,919.09 = 197,490.37/x
  3. Step 3: Cross multiply
    358,634.68x = 494,919.09 × 197,490.37
  4. Step 4: Simplify right side
    358,634.68x = 97,741,754,204.16
  5. Step 5: Solve for x
    x = 97,741,754,204.16/358,634.68
  6. Step 6: Final answer
    x = 272,538.49

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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.