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Finding the Fourth Proportional to 372,449.54, 514,035.69 and 219,438.82

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Solution

The fourth proportional to 372,449.54, 514,035.69 and 219,438.82 is: 302,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,449.54 : 514,035.69 = 219,438.82 : x
  2. Step 2: Convert to fraction form
    372,449.54/514,035.69 = 219,438.82/x
  3. Step 3: Cross multiply
    372,449.54x = 514,035.69 × 219,438.82
  4. Step 4: Simplify right side
    372,449.54x = 112,799,385,251.49
  5. Step 5: Solve for x
    x = 112,799,385,251.49/372,449.54
  6. Step 6: Final answer
    x = 302,858.17

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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.