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Finding the Fourth Proportional to 3,788,426.54, 5,682,689.06 and 1,264,081.79

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Solution

The fourth proportional to 3,788,426.54, 5,682,689.06 and 1,264,081.79 is: 1,896,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788,426.54 : 5,682,689.06 = 1,264,081.79 : x
  2. Step 2: Convert to fraction form
    3,788,426.54/5,682,689.06 = 1,264,081.79/x
  3. Step 3: Cross multiply
    3,788,426.54x = 5,682,689.06 × 1,264,081.79
  4. Step 4: Simplify right side
    3,788,426.54x = 7,183,383,752,657.81
  5. Step 5: Solve for x
    x = 7,183,383,752,657.81/3,788,426.54
  6. Step 6: Final answer
    x = 1,896,139.12

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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.