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Finding the Fourth Proportional to 613,114.92, 919,661.67 and 275,916.96

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Solution

The fourth proportional to 613,114.92, 919,661.67 and 275,916.96 is: 413,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,114.92 : 919,661.67 = 275,916.96 : x
  2. Step 2: Convert to fraction form
    613,114.92/919,661.67 = 275,916.96/x
  3. Step 3: Cross multiply
    613,114.92x = 919,661.67 × 275,916.96
  4. Step 4: Simplify right side
    613,114.92x = 253,750,252,214.92
  5. Step 5: Solve for x
    x = 253,750,252,214.92/613,114.92
  6. Step 6: Final answer
    x = 413,870.62

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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.