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Finding the Fourth Proportional to 408,661.25, 612,985.70 and 183,862.94

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Solution

The fourth proportional to 408,661.25, 612,985.70 and 183,862.94 is: 275,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,661.25 : 612,985.70 = 183,862.94 : x
  2. Step 2: Convert to fraction form
    408,661.25/612,985.70 = 183,862.94/x
  3. Step 3: Cross multiply
    408,661.25x = 612,985.70 × 183,862.94
  4. Step 4: Simplify right side
    408,661.25x = 112,705,350,374.69
  5. Step 5: Solve for x
    x = 112,705,350,374.69/408,661.25
  6. Step 6: Final answer
    x = 275,791.63

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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.