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Finding the Fourth Proportional to 1,257,625, 1,735,653.72 and 713,907.64

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Solution

The fourth proportional to 1,257,625, 1,735,653.72 and 713,907.64 is: 985,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,625 : 1,735,653.72 = 713,907.64 : x
  2. Step 2: Convert to fraction form
    1,257,625/1,735,653.72 = 713,907.64/x
  3. Step 3: Cross multiply
    1,257,625x = 1,735,653.72 × 713,907.64
  4. Step 4: Simplify right side
    1,257,625x = 1,239,096,451,102.42
  5. Step 5: Solve for x
    x = 1,239,096,451,102.42/1,257,625
  6. Step 6: Final answer
    x = 985,267.03

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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.