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Finding the Fourth Proportional to 609,239.88, 914,005.62 and 188,515.76

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Solution

The fourth proportional to 609,239.88, 914,005.62 and 188,515.76 is: 282,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,239.88 : 914,005.62 = 188,515.76 : x
  2. Step 2: Convert to fraction form
    609,239.88/914,005.62 = 188,515.76/x
  3. Step 3: Cross multiply
    609,239.88x = 914,005.62 × 188,515.76
  4. Step 4: Simplify right side
    609,239.88x = 172,304,459,528.54
  5. Step 5: Solve for x
    x = 172,304,459,528.54/609,239.88
  6. Step 6: Final answer
    x = 282,818.75

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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.