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Finding the Fourth Proportional to 577,086.18, 865,644.05 and 273,409.25

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Solution

The fourth proportional to 577,086.18, 865,644.05 and 273,409.25 is: 410,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,086.18 : 865,644.05 = 273,409.25 : x
  2. Step 2: Convert to fraction form
    577,086.18/865,644.05 = 273,409.25/x
  3. Step 3: Cross multiply
    577,086.18x = 865,644.05 × 273,409.25
  4. Step 4: Simplify right side
    577,086.18x = 236,675,090,078.93
  5. Step 5: Solve for x
    x = 236,675,090,078.93/577,086.18
  6. Step 6: Final answer
    x = 410,120.88

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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.