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Finding the Fourth Proportional to 423,080.44, 634,786.82 and 186,256.96

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Solution

The fourth proportional to 423,080.44, 634,786.82 and 186,256.96 is: 279,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,080.44 : 634,786.82 = 186,256.96 : x
  2. Step 2: Convert to fraction form
    423,080.44/634,786.82 = 186,256.96/x
  3. Step 3: Cross multiply
    423,080.44x = 634,786.82 × 186,256.96
  4. Step 4: Simplify right side
    423,080.44x = 118,233,463,341.27
  5. Step 5: Solve for x
    x = 118,233,463,341.27/423,080.44
  6. Step 6: Final answer
    x = 279,458.59

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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.