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Finding the Fourth Proportional to 358,998.89, 495,396.20 and 197,844.93

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Solution

The fourth proportional to 358,998.89, 495,396.20 and 197,844.93 is: 273,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,998.89 : 495,396.20 = 197,844.93 : x
  2. Step 2: Convert to fraction form
    358,998.89/495,396.20 = 197,844.93/x
  3. Step 3: Cross multiply
    358,998.89x = 495,396.20 × 197,844.93
  4. Step 4: Simplify right side
    358,998.89x = 98,011,627,005.88
  5. Step 5: Solve for x
    x = 98,011,627,005.88/358,998.89
  6. Step 6: Final answer
    x = 273,013.74

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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.