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Finding the Fourth Proportional to 492,190.90, 738,286.35 and 482,859.70

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Solution

The fourth proportional to 492,190.90, 738,286.35 and 482,859.70 is: 724,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,190.90 : 738,286.35 = 482,859.70 : x
  2. Step 2: Convert to fraction form
    492,190.90/738,286.35 = 482,859.70/x
  3. Step 3: Cross multiply
    492,190.90x = 738,286.35 × 482,859.70
  4. Step 4: Simplify right side
    492,190.90x = 356,488,725,475.10
  5. Step 5: Solve for x
    x = 356,488,725,475.10/492,190.90
  6. Step 6: Final answer
    x = 724,289.55

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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.