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Finding the Fourth Proportional to 573,541.72, 859,809.57 and 218,319.46

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Solution

The fourth proportional to 573,541.72, 859,809.57 and 218,319.46 is: 327,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,541.72 : 859,809.57 = 218,319.46 : x
  2. Step 2: Convert to fraction form
    573,541.72/859,809.57 = 218,319.46/x
  3. Step 3: Cross multiply
    573,541.72x = 859,809.57 × 218,319.46
  4. Step 4: Simplify right side
    573,541.72x = 187,713,158,057.01
  5. Step 5: Solve for x
    x = 187,713,158,057.01/573,541.72
  6. Step 6: Final answer
    x = 327,287.71

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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.