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Finding the Fourth Proportional to 1,444,497.72, 1,993,405.05 and 799,917.13

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Solution

The fourth proportional to 1,444,497.72, 1,993,405.05 and 799,917.13 is: 1,103,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444,497.72 : 1,993,405.05 = 799,917.13 : x
  2. Step 2: Convert to fraction form
    1,444,497.72/1,993,405.05 = 799,917.13/x
  3. Step 3: Cross multiply
    1,444,497.72x = 1,993,405.05 × 799,917.13
  4. Step 4: Simplify right side
    1,444,497.72x = 1,594,558,854,252.74
  5. Step 5: Solve for x
    x = 1,594,558,854,252.74/1,444,497.72
  6. Step 6: Final answer
    x = 1,103,884.65

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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.