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Finding the Fourth Proportional to 505,487.71, 757,857.04 and 238,936.76

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Solution

The fourth proportional to 505,487.71, 757,857.04 and 238,936.76 is: 358,228.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,487.71 : 757,857.04 = 238,936.76 : x
  2. Step 2: Convert to fraction form
    505,487.71/757,857.04 = 238,936.76/x
  3. Step 3: Cross multiply
    505,487.71x = 757,857.04 × 238,936.76
  4. Step 4: Simplify right side
    505,487.71x = 181,079,904,136.13
  5. Step 5: Solve for x
    x = 181,079,904,136.13/505,487.71
  6. Step 6: Final answer
    x = 358,228.10

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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.