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Finding the Fourth Proportional to 579,131.60, 867,660.60 and 496,187.60

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Solution

The fourth proportional to 579,131.60, 867,660.60 and 496,187.60 is: 743,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,131.60 : 867,660.60 = 496,187.60 : x
  2. Step 2: Convert to fraction form
    579,131.60/867,660.60 = 496,187.60/x
  3. Step 3: Cross multiply
    579,131.60x = 867,660.60 × 496,187.60
  4. Step 4: Simplify right side
    579,131.60x = 430,522,430,728.56
  5. Step 5: Solve for x
    x = 430,522,430,728.56/579,131.60
  6. Step 6: Final answer
    x = 743,393.09

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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.