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Finding the Fourth Proportional to 632,891.77, 873,515.14 and 479,662.69

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Solution

The fourth proportional to 632,891.77, 873,515.14 and 479,662.69 is: 662,028.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,891.77 : 873,515.14 = 479,662.69 : x
  2. Step 2: Convert to fraction form
    632,891.77/873,515.14 = 479,662.69/x
  3. Step 3: Cross multiply
    632,891.77x = 873,515.14 × 479,662.69
  4. Step 4: Simplify right side
    632,891.77x = 418,992,621,808.13
  5. Step 5: Solve for x
    x = 418,992,621,808.13/632,891.77
  6. Step 6: Final answer
    x = 662,028.87

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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.