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Finding the Fourth Proportional to 438,063.24, 657,371.28 and 171,816.66

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Solution

The fourth proportional to 438,063.24, 657,371.28 and 171,816.66 is: 257,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,063.24 : 657,371.28 = 171,816.66 : x
  2. Step 2: Convert to fraction form
    438,063.24/657,371.28 = 171,816.66/x
  3. Step 3: Cross multiply
    438,063.24x = 657,371.28 × 171,816.66
  4. Step 4: Simplify right side
    438,063.24x = 112,947,337,709.53
  5. Step 5: Solve for x
    x = 112,947,337,709.53/438,063.24
  6. Step 6: Final answer
    x = 257,833.41

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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.