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Finding the Fourth Proportional to 492,768.60, 739,152.90 and 334,138.20

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Solution

The fourth proportional to 492,768.60, 739,152.90 and 334,138.20 is: 501,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,768.60 : 739,152.90 = 334,138.20 : x
  2. Step 2: Convert to fraction form
    492,768.60/739,152.90 = 334,138.20/x
  3. Step 3: Cross multiply
    492,768.60x = 739,152.90 × 334,138.20
  4. Step 4: Simplify right side
    492,768.60x = 246,979,219,530.78
  5. Step 5: Solve for x
    x = 246,979,219,530.78/492,768.60
  6. Step 6: Final answer
    x = 501,207.30

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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.