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Finding the Fourth Proportional to 492,384.40, 738,576.60 and 159,960.40

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Solution

The fourth proportional to 492,384.40, 738,576.60 and 159,960.40 is: 239,940.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,384.40 : 738,576.60 = 159,960.40 : x
  2. Step 2: Convert to fraction form
    492,384.40/738,576.60 = 159,960.40/x
  3. Step 3: Cross multiply
    492,384.40x = 738,576.60 × 159,960.40
  4. Step 4: Simplify right side
    492,384.40x = 118,143,008,366.64
  5. Step 5: Solve for x
    x = 118,143,008,366.64/492,384.40
  6. Step 6: Final answer
    x = 239,940.60

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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.