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Finding the Fourth Proportional to 961,418.64, 1,441,111 and 362,120.49

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Solution

The fourth proportional to 961,418.64, 1,441,111 and 362,120.49 is: 542,797.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,418.64 : 1,441,111 = 362,120.49 : x
  2. Step 2: Convert to fraction form
    961,418.64/1,441,111 = 362,120.49/x
  3. Step 3: Cross multiply
    961,418.64x = 1,441,111 × 362,120.49
  4. Step 4: Simplify right side
    961,418.64x = 521,855,821,464.39
  5. Step 5: Solve for x
    x = 521,855,821,464.39/961,418.64
  6. Step 6: Final answer
    x = 542,797.69

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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.