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Finding the Fourth Proportional to 573,028.12, 859,338.06 and 218,137.96

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Solution

The fourth proportional to 573,028.12, 859,338.06 and 218,137.96 is: 327,129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,028.12 : 859,338.06 = 218,137.96 : x
  2. Step 2: Convert to fraction form
    573,028.12/859,338.06 = 218,137.96/x
  3. Step 3: Cross multiply
    573,028.12x = 859,338.06 × 218,137.96
  4. Step 4: Simplify right side
    573,028.12x = 187,454,251,358.76
  5. Step 5: Solve for x
    x = 187,454,251,358.76/573,028.12
  6. Step 6: Final answer
    x = 327,129.24

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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.