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Finding the Fourth Proportional to 1,286,715, 1,930,072.56 and 881,507.64

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Solution

The fourth proportional to 1,286,715, 1,930,072.56 and 881,507.64 is: 1,322,261.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,715 : 1,930,072.56 = 881,507.64 : x
  2. Step 2: Convert to fraction form
    1,286,715/1,930,072.56 = 881,507.64/x
  3. Step 3: Cross multiply
    1,286,715x = 1,930,072.56 × 881,507.64
  4. Step 4: Simplify right side
    1,286,715x = 1,701,373,707,394.36
  5. Step 5: Solve for x
    x = 1,701,373,707,394.36/1,286,715
  6. Step 6: Final answer
    x = 1,322,261.50

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.