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Finding the Fourth Proportional to 403,286.80, 604,546.20 and 150,499.60

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Solution

The fourth proportional to 403,286.80, 604,546.20 and 150,499.60 is: 225,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,286.80 : 604,546.20 = 150,499.60 : x
  2. Step 2: Convert to fraction form
    403,286.80/604,546.20 = 150,499.60/x
  3. Step 3: Cross multiply
    403,286.80x = 604,546.20 × 150,499.60
  4. Step 4: Simplify right side
    403,286.80x = 90,983,961,281.52
  5. Step 5: Solve for x
    x = 90,983,961,281.52/403,286.80
  6. Step 6: Final answer
    x = 225,606.10

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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.