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Finding the Fourth Proportional to 778,886.65, 1,092,015.95 and 778,886.65

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Solution

The fourth proportional to 778,886.65, 1,092,015.95 and 778,886.65 is: 1,092,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,886.65 : 1,092,015.95 = 778,886.65 : x
  2. Step 2: Convert to fraction form
    778,886.65/1,092,015.95 = 778,886.65/x
  3. Step 3: Cross multiply
    778,886.65x = 1,092,015.95 × 778,886.65
  4. Step 4: Simplify right side
    778,886.65x = 850,556,645,042.07
  5. Step 5: Solve for x
    x = 850,556,645,042.07/778,886.65
  6. Step 6: Final answer
    x = 1,092,015.95

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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.