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Finding the Fourth Proportional to 1,267,907.88, 1,749,709.26 and 694,946.28

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Solution

The fourth proportional to 1,267,907.88, 1,749,709.26 and 694,946.28 is: 959,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,907.88 : 1,749,709.26 = 694,946.28 : x
  2. Step 2: Convert to fraction form
    1,267,907.88/1,749,709.26 = 694,946.28/x
  3. Step 3: Cross multiply
    1,267,907.88x = 1,749,709.26 × 694,946.28
  4. Step 4: Simplify right side
    1,267,907.88x = 1,215,953,941,318.55
  5. Step 5: Solve for x
    x = 1,215,953,941,318.55/1,267,907.88
  6. Step 6: Final answer
    x = 959,023.89

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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.