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Finding the Fourth Proportional to 404,122.60, 605,396.58 and 245,958.76

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Solution

The fourth proportional to 404,122.60, 605,396.58 and 245,958.76 is: 368,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,122.60 : 605,396.58 = 245,958.76 : x
  2. Step 2: Convert to fraction form
    404,122.60/605,396.58 = 245,958.76/x
  3. Step 3: Cross multiply
    404,122.60x = 605,396.58 × 245,958.76
  4. Step 4: Simplify right side
    404,122.60x = 148,902,592,125.04
  5. Step 5: Solve for x
    x = 148,902,592,125.04/404,122.60
  6. Step 6: Final answer
    x = 368,458.96

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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.