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Finding the Fourth Proportional to 1,478,958.53, 2,040,962.93 and 799,895.03

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Solution

The fourth proportional to 1,478,958.53, 2,040,962.93 and 799,895.03 is: 1,103,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,958.53 : 2,040,962.93 = 799,895.03 : x
  2. Step 2: Convert to fraction form
    1,478,958.53/2,040,962.93 = 799,895.03/x
  3. Step 3: Cross multiply
    1,478,958.53x = 2,040,962.93 × 799,895.03
  4. Step 4: Simplify right side
    1,478,958.53x = 1,632,556,104,121.24
  5. Step 5: Solve for x
    x = 1,632,556,104,121.24/1,478,958.53
  6. Step 6: Final answer
    x = 1,103,855.23

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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.