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Finding the Fourth Proportional to 496,362.36, 744,261.06 and 338,781.72

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Solution

The fourth proportional to 496,362.36, 744,261.06 and 338,781.72 is: 507,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,362.36 : 744,261.06 = 338,781.72 : x
  2. Step 2: Convert to fraction form
    496,362.36/744,261.06 = 338,781.72/x
  3. Step 3: Cross multiply
    496,362.36x = 744,261.06 × 338,781.72
  4. Step 4: Simplify right side
    496,362.36x = 252,142,042,035.82
  5. Step 5: Solve for x
    x = 252,142,042,035.82/496,362.36
  6. Step 6: Final answer
    x = 507,979.78

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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.