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Finding the Fourth Proportional to 616,730.72, 925,201.56 and 211,903.52

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Solution

The fourth proportional to 616,730.72, 925,201.56 and 211,903.52 is: 317,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,730.72 : 925,201.56 = 211,903.52 : x
  2. Step 2: Convert to fraction form
    616,730.72/925,201.56 = 211,903.52/x
  3. Step 3: Cross multiply
    616,730.72x = 925,201.56 × 211,903.52
  4. Step 4: Simplify right side
    616,730.72x = 196,053,467,273.49
  5. Step 5: Solve for x
    x = 196,053,467,273.49/616,730.72
  6. Step 6: Final answer
    x = 317,891.52

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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.