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Finding the Fourth Proportional to 541,609.20, 810,858.60 and 331,657.20

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Solution

The fourth proportional to 541,609.20, 810,858.60 and 331,657.20 is: 496,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,609.20 : 810,858.60 = 331,657.20 : x
  2. Step 2: Convert to fraction form
    541,609.20/810,858.60 = 331,657.20/x
  3. Step 3: Cross multiply
    541,609.20x = 810,858.60 × 331,657.20
  4. Step 4: Simplify right side
    541,609.20x = 268,927,092,871.92
  5. Step 5: Solve for x
    x = 268,927,092,871.92/541,609.20
  6. Step 6: Final answer
    x = 496,533.47

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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.