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Finding the Fourth Proportional to 404,218.80, 605,672.10 and 254,190.60

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Solution

The fourth proportional to 404,218.80, 605,672.10 and 254,190.60 is: 380,873.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,218.80 : 605,672.10 = 254,190.60 : x
  2. Step 2: Convert to fraction form
    404,218.80/605,672.10 = 254,190.60/x
  3. Step 3: Cross multiply
    404,218.80x = 605,672.10 × 254,190.60
  4. Step 4: Simplify right side
    404,218.80x = 153,956,154,502.26
  5. Step 5: Solve for x
    x = 153,956,154,502.26/404,218.80
  6. Step 6: Final answer
    x = 380,873.32

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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.