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Finding the Fourth Proportional to 482,816.80, 724,311.60 and 202,362.40

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Solution

The fourth proportional to 482,816.80, 724,311.60 and 202,362.40 is: 303,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,816.80 : 724,311.60 = 202,362.40 : x
  2. Step 2: Convert to fraction form
    482,816.80/724,311.60 = 202,362.40/x
  3. Step 3: Cross multiply
    482,816.80x = 724,311.60 × 202,362.40
  4. Step 4: Simplify right side
    482,816.80x = 146,573,433,723.84
  5. Step 5: Solve for x
    x = 146,573,433,723.84/482,816.80
  6. Step 6: Final answer
    x = 303,579.81

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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.