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Finding the Fourth Proportional to 358,728.49, 495,067.74 and 197,583.49

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Solution

The fourth proportional to 358,728.49, 495,067.74 and 197,583.49 is: 272,677.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728.49 : 495,067.74 = 197,583.49 : x
  2. Step 2: Convert to fraction form
    358,728.49/495,067.74 = 197,583.49/x
  3. Step 3: Cross multiply
    358,728.49x = 495,067.74 × 197,583.49
  4. Step 4: Simplify right side
    358,728.49x = 97,817,209,380.27
  5. Step 5: Solve for x
    x = 97,817,209,380.27/358,728.49
  6. Step 6: Final answer
    x = 272,677.56

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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.