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Finding the Fourth Proportional to 492,787.80, 739,181.70 and 492,787.80

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Solution

The fourth proportional to 492,787.80, 739,181.70 and 492,787.80 is: 739,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,787.80 : 739,181.70 = 492,787.80 : x
  2. Step 2: Convert to fraction form
    492,787.80/739,181.70 = 492,787.80/x
  3. Step 3: Cross multiply
    492,787.80x = 739,181.70 × 492,787.80
  4. Step 4: Simplify right side
    492,787.80x = 364,259,723,743.26
  5. Step 5: Solve for x
    x = 364,259,723,743.26/492,787.80
  6. Step 6: Final answer
    x = 739,181.70

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Double scale
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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.