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Finding the Fourth Proportional to 1,296,327.56, 1,941,691.98 and 1,264,601.48

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Solution

The fourth proportional to 1,296,327.56, 1,941,691.98 and 1,264,601.48 is: 1,894,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,327.56 : 1,941,691.98 = 1,264,601.48 : x
  2. Step 2: Convert to fraction form
    1,296,327.56/1,941,691.98 = 1,264,601.48/x
  3. Step 3: Cross multiply
    1,296,327.56x = 1,941,691.98 × 1,264,601.48
  4. Step 4: Simplify right side
    1,296,327.56x = 2,455,466,551,612.13
  5. Step 5: Solve for x
    x = 2,455,466,551,612.13/1,296,327.56
  6. Step 6: Final answer
    x = 1,894,171.37

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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.