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Finding the Fourth Proportional to 492,813.60, 739,220.40 and 492,813.60

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Solution

The fourth proportional to 492,813.60, 739,220.40 and 492,813.60 is: 739,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,813.60 : 739,220.40 = 492,813.60 : x
  2. Step 2: Convert to fraction form
    492,813.60/739,220.40 = 492,813.60/x
  3. Step 3: Cross multiply
    492,813.60x = 739,220.40 × 492,813.60
  4. Step 4: Simplify right side
    492,813.60x = 364,297,866,517.44
  5. Step 5: Solve for x
    x = 364,297,866,517.44/492,813.60
  6. Step 6: Final answer
    x = 739,220.40

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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.