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Finding the Fourth Proportional to 767,793.60, 1,151,690.40 and 341,328.60

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Solution

The fourth proportional to 767,793.60, 1,151,690.40 and 341,328.60 is: 511,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,793.60 : 1,151,690.40 = 341,328.60 : x
  2. Step 2: Convert to fraction form
    767,793.60/1,151,690.40 = 341,328.60/x
  3. Step 3: Cross multiply
    767,793.60x = 1,151,690.40 × 341,328.60
  4. Step 4: Simplify right side
    767,793.60x = 393,104,871,865.44
  5. Step 5: Solve for x
    x = 393,104,871,865.44/767,793.60
  6. Step 6: Final answer
    x = 511,992.90

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Double scale
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Similar ratio
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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.