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Finding the Fourth Proportional to 358,971.72, 495,384.36 and 197,832.66

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Solution

The fourth proportional to 358,971.72, 495,384.36 and 197,832.66 is: 273,010.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,971.72 : 495,384.36 = 197,832.66 : x
  2. Step 2: Convert to fraction form
    358,971.72/495,384.36 = 197,832.66/x
  3. Step 3: Cross multiply
    358,971.72x = 495,384.36 × 197,832.66
  4. Step 4: Simplify right side
    358,971.72x = 98,003,205,661.20
  5. Step 5: Solve for x
    x = 98,003,205,661.20/358,971.72
  6. Step 6: Final answer
    x = 273,010.94

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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.