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Finding the Fourth Proportional to 410,330.54, 616,578.24 and 220,930.94

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Solution

The fourth proportional to 410,330.54, 616,578.24 and 220,930.94 is: 331,979.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,330.54 : 616,578.24 = 220,930.94 : x
  2. Step 2: Convert to fraction form
    410,330.54/616,578.24 = 220,930.94/x
  3. Step 3: Cross multiply
    410,330.54x = 616,578.24 × 220,930.94
  4. Step 4: Simplify right side
    410,330.54x = 136,221,207,063.85
  5. Step 5: Solve for x
    x = 136,221,207,063.85/410,330.54
  6. Step 6: Final answer
    x = 331,979.21

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1.5x scale

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.