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Finding the Fourth Proportional to 3,826,342.11, 5,739,843.65 and 986,430.27

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Solution

The fourth proportional to 3,826,342.11, 5,739,843.65 and 986,430.27 is: 1,479,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826,342.11 : 5,739,843.65 = 986,430.27 : x
  2. Step 2: Convert to fraction form
    3,826,342.11/5,739,843.65 = 986,430.27/x
  3. Step 3: Cross multiply
    3,826,342.11x = 5,739,843.65 × 986,430.27
  4. Step 4: Simplify right side
    3,826,342.11x = 5,661,955,516,495.13
  5. Step 5: Solve for x
    x = 5,661,955,516,495.13/3,826,342.11
  6. Step 6: Final answer
    x = 1,479,730.60

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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.