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Finding the Fourth Proportional to 335,448.88, 503,406.60 and 216,826

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Solution

The fourth proportional to 335,448.88, 503,406.60 and 216,826 is: 325,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,448.88 : 503,406.60 = 216,826 : x
  2. Step 2: Convert to fraction form
    335,448.88/503,406.60 = 216,826/x
  3. Step 3: Cross multiply
    335,448.88x = 503,406.60 × 216,826
  4. Step 4: Simplify right side
    335,448.88x = 109,151,639,451.60
  5. Step 5: Solve for x
    x = 109,151,639,451.60/335,448.88
  6. Step 6: Final answer
    x = 325,389.79

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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.