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Finding the Fourth Proportional to 403,463.20, 605,194.80 and 182,279.20

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Solution

The fourth proportional to 403,463.20, 605,194.80 and 182,279.20 is: 273,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,463.20 : 605,194.80 = 182,279.20 : x
  2. Step 2: Convert to fraction form
    403,463.20/605,194.80 = 182,279.20/x
  3. Step 3: Cross multiply
    403,463.20x = 605,194.80 × 182,279.20
  4. Step 4: Simplify right side
    403,463.20x = 110,314,423,988.16
  5. Step 5: Solve for x
    x = 110,314,423,988.16/403,463.20
  6. Step 6: Final answer
    x = 273,418.80

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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.