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Finding the Fourth Proportional to 806,793.78, 1,113,367.23 and 444,210.78

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Solution

The fourth proportional to 806,793.78, 1,113,367.23 and 444,210.78 is: 613,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,793.78 : 1,113,367.23 = 444,210.78 : x
  2. Step 2: Convert to fraction form
    806,793.78/1,113,367.23 = 444,210.78/x
  3. Step 3: Cross multiply
    806,793.78x = 1,113,367.23 × 444,210.78
  4. Step 4: Simplify right side
    806,793.78x = 494,569,725,664.74
  5. Step 5: Solve for x
    x = 494,569,725,664.74/806,793.78
  6. Step 6: Final answer
    x = 613,006.37

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Double scale
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1.5x scale

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.