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Finding the Fourth Proportional to 806,661, 1,113,172.56 and 444,081.96

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Solution

The fourth proportional to 806,661, 1,113,172.56 and 444,081.96 is: 612,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,661 : 1,113,172.56 = 444,081.96 : x
  2. Step 2: Convert to fraction form
    806,661/1,113,172.56 = 444,081.96/x
  3. Step 3: Cross multiply
    806,661x = 1,113,172.56 × 444,081.96
  4. Step 4: Simplify right side
    806,661x = 494,339,852,263.02
  5. Step 5: Solve for x
    x = 494,339,852,263.02/806,661
  6. Step 6: Final answer
    x = 612,822.30

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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.