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Finding the Fourth Proportional to 1,296,382.40, 1,941,074.40 and 1,016,446.40

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Solution

The fourth proportional to 1,296,382.40, 1,941,074.40 and 1,016,446.40 is: 1,521,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,382.40 : 1,941,074.40 = 1,016,446.40 : x
  2. Step 2: Convert to fraction form
    1,296,382.40/1,941,074.40 = 1,016,446.40/x
  3. Step 3: Cross multiply
    1,296,382.40x = 1,941,074.40 × 1,016,446.40
  4. Step 4: Simplify right side
    1,296,382.40x = 1,972,998,086,012.16
  5. Step 5: Solve for x
    x = 1,972,998,086,012.16/1,296,382.40
  6. Step 6: Final answer
    x = 1,521,926.00

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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.