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Finding the Fourth Proportional to 353,305.60, 530,185.20 and 195,647.20

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Solution

The fourth proportional to 353,305.60, 530,185.20 and 195,647.20 is: 293,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,305.60 : 530,185.20 = 195,647.20 : x
  2. Step 2: Convert to fraction form
    353,305.60/530,185.20 = 195,647.20/x
  3. Step 3: Cross multiply
    353,305.60x = 530,185.20 × 195,647.20
  4. Step 4: Simplify right side
    353,305.60x = 103,729,249,861.44
  5. Step 5: Solve for x
    x = 103,729,249,861.44/353,305.60
  6. Step 6: Final answer
    x = 293,596.39

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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.