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Finding the Fourth Proportional to 793,890, 1,095,568.20 and 436,194

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Solution

The fourth proportional to 793,890, 1,095,568.20 and 436,194 is: 601,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,890 : 1,095,568.20 = 436,194 : x
  2. Step 2: Convert to fraction form
    793,890/1,095,568.20 = 436,194/x
  3. Step 3: Cross multiply
    793,890x = 1,095,568.20 × 436,194
  4. Step 4: Simplify right side
    793,890x = 477,880,275,430.80
  5. Step 5: Solve for x
    x = 477,880,275,430.80/793,890
  6. Step 6: Final answer
    x = 601,947.72

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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.