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Finding the Fourth Proportional to 577,531.92, 866,357.28 and 218,005.59

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Solution

The fourth proportional to 577,531.92, 866,357.28 and 218,005.59 is: 327,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,531.92 : 866,357.28 = 218,005.59 : x
  2. Step 2: Convert to fraction form
    577,531.92/866,357.28 = 218,005.59/x
  3. Step 3: Cross multiply
    577,531.92x = 866,357.28 × 218,005.59
  4. Step 4: Simplify right side
    577,531.92x = 188,870,729,977.20
  5. Step 5: Solve for x
    x = 188,870,729,977.20/577,531.92
  6. Step 6: Final answer
    x = 327,030.81

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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.