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Finding the Fourth Proportional to 552,192.77, 762,016.80 and 307,174.61

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Solution

The fourth proportional to 552,192.77, 762,016.80 and 307,174.61 is: 423,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,192.77 : 762,016.80 = 307,174.61 : x
  2. Step 2: Convert to fraction form
    552,192.77/762,016.80 = 307,174.61/x
  3. Step 3: Cross multiply
    552,192.77x = 762,016.80 × 307,174.61
  4. Step 4: Simplify right side
    552,192.77x = 234,072,213,353.45
  5. Step 5: Solve for x
    x = 234,072,213,353.45/552,192.77
  6. Step 6: Final answer
    x = 423,895.83

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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.