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Finding the Fourth Proportional to 573,489.72, 859,892.76 and 218,531.52

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Solution

The fourth proportional to 573,489.72, 859,892.76 and 218,531.52 is: 327,667.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,489.72 : 859,892.76 = 218,531.52 : x
  2. Step 2: Convert to fraction form
    573,489.72/859,892.76 = 218,531.52/x
  3. Step 3: Cross multiply
    573,489.72x = 859,892.76 × 218,531.52
  4. Step 4: Simplify right side
    573,489.72x = 187,913,671,879.80
  5. Step 5: Solve for x
    x = 187,913,671,879.80/573,489.72
  6. Step 6: Final answer
    x = 327,667.03

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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.