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Finding the Fourth Proportional to 395,818.68, 593,503.09 and 155,802.50

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Solution

The fourth proportional to 395,818.68, 593,503.09 and 155,802.50 is: 233,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,818.68 : 593,503.09 = 155,802.50 : x
  2. Step 2: Convert to fraction form
    395,818.68/593,503.09 = 155,802.50/x
  3. Step 3: Cross multiply
    395,818.68x = 593,503.09 × 155,802.50
  4. Step 4: Simplify right side
    395,818.68x = 92,469,265,179.73
  5. Step 5: Solve for x
    x = 92,469,265,179.73/395,818.68
  6. Step 6: Final answer
    x = 233,615.21

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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.