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Finding the Fourth Proportional to 482,880.20, 724,190.70 and 202,339.40

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Solution

The fourth proportional to 482,880.20, 724,190.70 and 202,339.40 is: 303,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,880.20 : 724,190.70 = 202,339.40 : x
  2. Step 2: Convert to fraction form
    482,880.20/724,190.70 = 202,339.40/x
  3. Step 3: Cross multiply
    482,880.20x = 724,190.70 × 202,339.40
  4. Step 4: Simplify right side
    482,880.20x = 146,532,311,723.58
  5. Step 5: Solve for x
    x = 146,532,311,723.58/482,880.20
  6. Step 6: Final answer
    x = 303,454.79

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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.