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Finding the Fourth Proportional to 573,758.12, 860,665.20 and 218,705.96

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Solution

The fourth proportional to 573,758.12, 860,665.20 and 218,705.96 is: 328,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,758.12 : 860,665.20 = 218,705.96 : x
  2. Step 2: Convert to fraction form
    573,758.12/860,665.20 = 218,705.96/x
  3. Step 3: Cross multiply
    573,758.12x = 860,665.20 × 218,705.96
  4. Step 4: Simplify right side
    573,758.12x = 188,232,608,804.59
  5. Step 5: Solve for x
    x = 188,232,608,804.59/573,758.12
  6. Step 6: Final answer
    x = 328,069.62

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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.