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Finding the Fourth Proportional to 483,362.80, 724,698.60 and 216,905.20

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Solution

The fourth proportional to 483,362.80, 724,698.60 and 216,905.20 is: 325,202.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,362.80 : 724,698.60 = 216,905.20 : x
  2. Step 2: Convert to fraction form
    483,362.80/724,698.60 = 216,905.20/x
  3. Step 3: Cross multiply
    483,362.80x = 724,698.60 × 216,905.20
  4. Step 4: Simplify right side
    483,362.80x = 157,190,894,772.72
  5. Step 5: Solve for x
    x = 157,190,894,772.72/483,362.80
  6. Step 6: Final answer
    x = 325,202.71

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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.