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Finding the Fourth Proportional to 1,275,932.93, 1,916,083.49 and 852,191.75

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Solution

The fourth proportional to 1,275,932.93, 1,916,083.49 and 852,191.75 is: 1,279,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,932.93 : 1,916,083.49 = 852,191.75 : x
  2. Step 2: Convert to fraction form
    1,275,932.93/1,916,083.49 = 852,191.75/x
  3. Step 3: Cross multiply
    1,275,932.93x = 1,916,083.49 × 852,191.75
  4. Step 4: Simplify right side
    1,275,932.93x = 1,632,870,543,018.46
  5. Step 5: Solve for x
    x = 1,632,870,543,018.46/1,275,932.93
  6. Step 6: Final answer
    x = 1,279,746.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.