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Finding the Fourth Proportional to 575,570.40, 862,863.33 and 220,839

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Solution

The fourth proportional to 575,570.40, 862,863.33 and 220,839 is: 331,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,570.40 : 862,863.33 = 220,839 : x
  2. Step 2: Convert to fraction form
    575,570.40/862,863.33 = 220,839/x
  3. Step 3: Cross multiply
    575,570.40x = 862,863.33 × 220,839
  4. Step 4: Simplify right side
    575,570.40x = 190,553,874,933.87
  5. Step 5: Solve for x
    x = 190,553,874,933.87/575,570.40
  6. Step 6: Final answer
    x = 331,069.62

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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.