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Finding the Fourth Proportional to 778,884.65, 1,092,013.15 and 778,884.65

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Solution

The fourth proportional to 778,884.65, 1,092,013.15 and 778,884.65 is: 1,092,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,884.65 : 1,092,013.15 = 778,884.65 : x
  2. Step 2: Convert to fraction form
    778,884.65/1,092,013.15 = 778,884.65/x
  3. Step 3: Cross multiply
    778,884.65x = 1,092,013.15 × 778,884.65
  4. Step 4: Simplify right side
    778,884.65x = 850,552,280,133.15
  5. Step 5: Solve for x
    x = 850,552,280,133.15/778,884.65
  6. Step 6: Final answer
    x = 1,092,013.15

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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.