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Finding the Fourth Proportional to 892,751.25, 1,232,072.70 and 505,635.54

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Solution

The fourth proportional to 892,751.25, 1,232,072.70 and 505,635.54 is: 697,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,751.25 : 1,232,072.70 = 505,635.54 : x
  2. Step 2: Convert to fraction form
    892,751.25/1,232,072.70 = 505,635.54/x
  3. Step 3: Cross multiply
    892,751.25x = 1,232,072.70 × 505,635.54
  4. Step 4: Simplify right side
    892,751.25x = 622,979,744,983.76
  5. Step 5: Solve for x
    x = 622,979,744,983.76/892,751.25
  6. Step 6: Final answer
    x = 697,820.08

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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.