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Finding the Fourth Proportional to 659,179.48, 988,761.99 and 500,231.81

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Solution

The fourth proportional to 659,179.48, 988,761.99 and 500,231.81 is: 750,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,179.48 : 988,761.99 = 500,231.81 : x
  2. Step 2: Convert to fraction form
    659,179.48/988,761.99 = 500,231.81/x
  3. Step 3: Cross multiply
    659,179.48x = 988,761.99 × 500,231.81
  4. Step 4: Simplify right side
    659,179.48x = 494,610,194,973.09
  5. Step 5: Solve for x
    x = 494,610,194,973.09/659,179.48
  6. Step 6: Final answer
    x = 750,342.23

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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.