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Finding the Fourth Proportional to 361,867.70, 542,801.55 and 328,625.30

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Solution

The fourth proportional to 361,867.70, 542,801.55 and 328,625.30 is: 492,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,867.70 : 542,801.55 = 328,625.30 : x
  2. Step 2: Convert to fraction form
    361,867.70/542,801.55 = 328,625.30/x
  3. Step 3: Cross multiply
    361,867.70x = 542,801.55 × 328,625.30
  4. Step 4: Simplify right side
    361,867.70x = 178,378,322,209.22
  5. Step 5: Solve for x
    x = 178,378,322,209.22/361,867.70
  6. Step 6: Final answer
    x = 492,937.95

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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.