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Finding the Fourth Proportional to 483,640.40, 724,942.20 and 184,005.20

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Solution

The fourth proportional to 483,640.40, 724,942.20 and 184,005.20 is: 275,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,640.40 : 724,942.20 = 184,005.20 : x
  2. Step 2: Convert to fraction form
    483,640.40/724,942.20 = 184,005.20/x
  3. Step 3: Cross multiply
    483,640.40x = 724,942.20 × 184,005.20
  4. Step 4: Simplify right side
    483,640.40x = 133,393,134,499.44
  5. Step 5: Solve for x
    x = 133,393,134,499.44/483,640.40
  6. Step 6: Final answer
    x = 275,810.57

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1.5x scale

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.