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Finding the Fourth Proportional to 403,463.60, 605,195.40 and 122,994.80

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Solution

The fourth proportional to 403,463.60, 605,195.40 and 122,994.80 is: 184,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,463.60 : 605,195.40 = 122,994.80 : x
  2. Step 2: Convert to fraction form
    403,463.60/605,195.40 = 122,994.80/x
  3. Step 3: Cross multiply
    403,463.60x = 605,195.40 × 122,994.80
  4. Step 4: Simplify right side
    403,463.60x = 74,435,887,183.92
  5. Step 5: Solve for x
    x = 74,435,887,183.92/403,463.60
  6. Step 6: Final answer
    x = 184,492.20

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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.