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Finding the Fourth Proportional to 571,288.41, 857,052.77 and 216,294.57

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Solution

The fourth proportional to 571,288.41, 857,052.77 and 216,294.57 is: 324,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,288.41 : 857,052.77 = 216,294.57 : x
  2. Step 2: Convert to fraction form
    571,288.41/857,052.77 = 216,294.57/x
  3. Step 3: Cross multiply
    571,288.41x = 857,052.77 × 216,294.57
  4. Step 4: Simplify right side
    571,288.41x = 185,375,859,272.99
  5. Step 5: Solve for x
    x = 185,375,859,272.99/571,288.41
  6. Step 6: Final answer
    x = 324,487.34

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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.