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Finding the Fourth Proportional to 376,513.37, 519,586.11 and 215,371.11

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Solution

The fourth proportional to 376,513.37, 519,586.11 and 215,371.11 is: 297,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,513.37 : 519,586.11 = 215,371.11 : x
  2. Step 2: Convert to fraction form
    376,513.37/519,586.11 = 215,371.11/x
  3. Step 3: Cross multiply
    376,513.37x = 519,586.11 × 215,371.11
  4. Step 4: Simplify right side
    376,513.37x = 111,903,835,302.83
  5. Step 5: Solve for x
    x = 111,903,835,302.83/376,513.37
  6. Step 6: Final answer
    x = 297,210.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.