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Finding the Fourth Proportional to 778,891.65, 1,092,022.95 and 778,891.65

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Solution

The fourth proportional to 778,891.65, 1,092,022.95 and 778,891.65 is: 1,092,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,891.65 : 1,092,022.95 = 778,891.65 : x
  2. Step 2: Convert to fraction form
    778,891.65/1,092,022.95 = 778,891.65/x
  3. Step 3: Cross multiply
    778,891.65x = 1,092,022.95 × 778,891.65
  4. Step 4: Simplify right side
    778,891.65x = 850,567,557,363.37
  5. Step 5: Solve for x
    x = 850,567,557,363.37/778,891.65
  6. Step 6: Final answer
    x = 1,092,022.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.