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Finding the Fourth Proportional to 439,340.52, 658,881.60 and 186,619

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Solution

The fourth proportional to 439,340.52, 658,881.60 and 186,619 is: 279,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,340.52 : 658,881.60 = 186,619 : x
  2. Step 2: Convert to fraction form
    439,340.52/658,881.60 = 186,619/x
  3. Step 3: Cross multiply
    439,340.52x = 658,881.60 × 186,619
  4. Step 4: Simplify right side
    439,340.52x = 122,959,825,310.40
  5. Step 5: Solve for x
    x = 122,959,825,310.40/439,340.52
  6. Step 6: Final answer
    x = 279,873.63

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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.