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Finding the Fourth Proportional to 573,545.35, 859,815 and 218,323.09

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Solution

The fourth proportional to 573,545.35, 859,815 and 218,323.09 is: 327,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,545.35 : 859,815 = 218,323.09 : x
  2. Step 2: Convert to fraction form
    573,545.35/859,815 = 218,323.09/x
  3. Step 3: Cross multiply
    573,545.35x = 859,815 × 218,323.09
  4. Step 4: Simplify right side
    573,545.35x = 187,717,467,628.35
  5. Step 5: Solve for x
    x = 187,717,467,628.35/573,545.35
  6. Step 6: Final answer
    x = 327,293.16

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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.