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Finding the Fourth Proportional to 6,446,395.15, 9,668,541.43 and 1,896,379.68

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Solution

The fourth proportional to 6,446,395.15, 9,668,541.43 and 1,896,379.68 is: 2,844,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446,395.15 : 9,668,541.43 = 1,896,379.68 : x
  2. Step 2: Convert to fraction form
    6,446,395.15/9,668,541.43 = 1,896,379.68/x
  3. Step 3: Cross multiply
    6,446,395.15x = 9,668,541.43 × 1,896,379.68
  4. Step 4: Simplify right side
    6,446,395.15x = 18,335,225,503,090.14
  5. Step 5: Solve for x
    x = 18,335,225,503,090.14/6,446,395.15
  6. Step 6: Final answer
    x = 2,844,260.25

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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.