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Finding the Fourth Proportional to 515,694.87, 773,541.25 and 290,953.29

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Solution

The fourth proportional to 515,694.87, 773,541.25 and 290,953.29 is: 436,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,694.87 : 773,541.25 = 290,953.29 : x
  2. Step 2: Convert to fraction form
    515,694.87/773,541.25 = 290,953.29/x
  3. Step 3: Cross multiply
    515,694.87x = 773,541.25 × 290,953.29
  4. Step 4: Simplify right side
    515,694.87x = 225,064,368,010.05
  5. Step 5: Solve for x
    x = 225,064,368,010.05/515,694.87
  6. Step 6: Final answer
    x = 436,429.33

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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.