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Finding the Fourth Proportional to 568,400.15, 852,147.95 and 328,241.43

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Solution

The fourth proportional to 568,400.15, 852,147.95 and 328,241.43 is: 492,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,400.15 : 852,147.95 = 328,241.43 : x
  2. Step 2: Convert to fraction form
    568,400.15/852,147.95 = 328,241.43/x
  3. Step 3: Cross multiply
    568,400.15x = 852,147.95 × 328,241.43
  4. Step 4: Simplify right side
    568,400.15x = 279,710,260,038.36
  5. Step 5: Solve for x
    x = 279,710,260,038.36/568,400.15
  6. Step 6: Final answer
    x = 492,100.96

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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.