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Finding the Fourth Proportional to 393,714.82, 590,666.08 and 127,475.41

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Solution

The fourth proportional to 393,714.82, 590,666.08 and 127,475.41 is: 191,243.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,714.82 : 590,666.08 = 127,475.41 : x
  2. Step 2: Convert to fraction form
    393,714.82/590,666.08 = 127,475.41/x
  3. Step 3: Cross multiply
    393,714.82x = 590,666.08 × 127,475.41
  4. Step 4: Simplify right side
    393,714.82x = 75,295,400,721.09
  5. Step 5: Solve for x
    x = 75,295,400,721.09/393,714.82
  6. Step 6: Final answer
    x = 191,243.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.