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Finding the Fourth Proportional to 573,293.60, 859,616.40 and 218,319.20

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Solution

The fourth proportional to 573,293.60, 859,616.40 and 218,319.20 is: 327,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,293.60 : 859,616.40 = 218,319.20 : x
  2. Step 2: Convert to fraction form
    573,293.60/859,616.40 = 218,319.20/x
  3. Step 3: Cross multiply
    573,293.60x = 859,616.40 × 218,319.20
  4. Step 4: Simplify right side
    573,293.60x = 187,670,764,754.88
  5. Step 5: Solve for x
    x = 187,670,764,754.88/573,293.60
  6. Step 6: Final answer
    x = 327,355.42

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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.