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Finding the Fourth Proportional to 611,840.86, 917,757.64 and 237,863.86

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Solution

The fourth proportional to 611,840.86, 917,757.64 and 237,863.86 is: 356,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,840.86 : 917,757.64 = 237,863.86 : x
  2. Step 2: Convert to fraction form
    611,840.86/917,757.64 = 237,863.86/x
  3. Step 3: Cross multiply
    611,840.86x = 917,757.64 × 237,863.86
  4. Step 4: Simplify right side
    611,840.86x = 218,301,374,794.89
  5. Step 5: Solve for x
    x = 218,301,374,794.89/611,840.86
  6. Step 6: Final answer
    x = 356,794.37

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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.