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Finding the Fourth Proportional to 1,296,326.31, 1,941,690.11 and 1,264,600.23

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Solution

The fourth proportional to 1,296,326.31, 1,941,690.11 and 1,264,600.23 is: 1,894,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,326.31 : 1,941,690.11 = 1,264,600.23 : x
  2. Step 2: Convert to fraction form
    1,296,326.31/1,941,690.11 = 1,264,600.23/x
  3. Step 3: Cross multiply
    1,296,326.31x = 1,941,690.11 × 1,264,600.23
  4. Step 4: Simplify right side
    1,296,326.31x = 2,455,461,753,371.72
  5. Step 5: Solve for x
    x = 2,455,461,753,371.72/1,296,326.31
  6. Step 6: Final answer
    x = 1,894,169.50

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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.