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Finding the Fourth Proportional to 331,092.90, 495,655.20 and 197,904.60

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Solution

The fourth proportional to 331,092.90, 495,655.20 and 197,904.60 is: 296,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,092.90 : 495,655.20 = 197,904.60 : x
  2. Step 2: Convert to fraction form
    331,092.90/495,655.20 = 197,904.60/x
  3. Step 3: Cross multiply
    331,092.90x = 495,655.20 × 197,904.60
  4. Step 4: Simplify right side
    331,092.90x = 98,092,444,093.92
  5. Step 5: Solve for x
    x = 98,092,444,093.92/331,092.90
  6. Step 6: Final answer
    x = 296,268.64

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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.