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Finding the Fourth Proportional to 1,966,813.89, 2,714,286.87 and 1,095,647.52

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Solution

The fourth proportional to 1,966,813.89, 2,714,286.87 and 1,095,647.52 is: 1,512,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966,813.89 : 2,714,286.87 = 1,095,647.52 : x
  2. Step 2: Convert to fraction form
    1,966,813.89/2,714,286.87 = 1,095,647.52/x
  3. Step 3: Cross multiply
    1,966,813.89x = 2,714,286.87 × 1,095,647.52
  4. Step 4: Simplify right side
    1,966,813.89x = 2,973,901,677,684.06
  5. Step 5: Solve for x
    x = 2,973,901,677,684.06/1,966,813.89
  6. Step 6: Final answer
    x = 1,512,040.21

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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.