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Finding the Fourth Proportional to 1,963,855.80, 2,710,078.52 and 1,136,964.23

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Solution

The fourth proportional to 1,963,855.80, 2,710,078.52 and 1,136,964.23 is: 1,568,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963,855.80 : 2,710,078.52 = 1,136,964.23 : x
  2. Step 2: Convert to fraction form
    1,963,855.80/2,710,078.52 = 1,136,964.23/x
  3. Step 3: Cross multiply
    1,963,855.80x = 2,710,078.52 × 1,136,964.23
  4. Step 4: Simplify right side
    1,963,855.80x = 3,081,262,332,046.52
  5. Step 5: Solve for x
    x = 3,081,262,332,046.52/1,963,855.80
  6. Step 6: Final answer
    x = 1,568,986.04

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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.