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Finding the Fourth Proportional to 483,309.20, 724,963.80 and 203,373.20

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Solution

The fourth proportional to 483,309.20, 724,963.80 and 203,373.20 is: 305,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,309.20 : 724,963.80 = 203,373.20 : x
  2. Step 2: Convert to fraction form
    483,309.20/724,963.80 = 203,373.20/x
  3. Step 3: Cross multiply
    483,309.20x = 724,963.80 × 203,373.20
  4. Step 4: Simplify right side
    483,309.20x = 147,438,207,890.16
  5. Step 5: Solve for x
    x = 147,438,207,890.16/483,309.20
  6. Step 6: Final answer
    x = 305,059.80

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Similar ratio
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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.