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Finding the Fourth Proportional to 1,719,976.81, 2,373,569.52 and 945,620.82

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Solution

The fourth proportional to 1,719,976.81, 2,373,569.52 and 945,620.82 is: 1,304,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,976.81 : 2,373,569.52 = 945,620.82 : x
  2. Step 2: Convert to fraction form
    1,719,976.81/2,373,569.52 = 945,620.82/x
  3. Step 3: Cross multiply
    1,719,976.81x = 2,373,569.52 × 945,620.82
  4. Step 4: Simplify right side
    1,719,976.81x = 2,244,496,751,101.30
  5. Step 5: Solve for x
    x = 2,244,496,751,101.30/1,719,976.81
  6. Step 6: Final answer
    x = 1,304,957.57

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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.