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Finding the Fourth Proportional to 806,296.33, 1,112,689.07 and 443,746

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Solution

The fourth proportional to 806,296.33, 1,112,689.07 and 443,746 is: 612,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,296.33 : 1,112,689.07 = 443,746 : x
  2. Step 2: Convert to fraction form
    806,296.33/1,112,689.07 = 443,746/x
  3. Step 3: Cross multiply
    806,296.33x = 1,112,689.07 × 443,746
  4. Step 4: Simplify right side
    806,296.33x = 493,751,324,056.22
  5. Step 5: Solve for x
    x = 493,751,324,056.22/806,296.33
  6. Step 6: Final answer
    x = 612,369.55

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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.