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Finding the Fourth Proportional to 1,262,170.44, 1,741,795.04 and 689,211.14

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Solution

The fourth proportional to 1,262,170.44, 1,741,795.04 and 689,211.14 is: 951,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,170.44 : 1,741,795.04 = 689,211.14 : x
  2. Step 2: Convert to fraction form
    1,262,170.44/1,741,795.04 = 689,211.14/x
  3. Step 3: Cross multiply
    1,262,170.44x = 1,741,795.04 × 689,211.14
  4. Step 4: Simplify right side
    1,262,170.44x = 1,200,464,538,178.80
  5. Step 5: Solve for x
    x = 1,200,464,538,178.80/1,262,170.44
  6. Step 6: Final answer
    x = 951,111.28

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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.