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Finding the Fourth Proportional to 504,399.96, 696,072.90 and 274,959.12

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Solution

The fourth proportional to 504,399.96, 696,072.90 and 274,959.12 is: 379,444.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,399.96 : 696,072.90 = 274,959.12 : x
  2. Step 2: Convert to fraction form
    504,399.96/696,072.90 = 274,959.12/x
  3. Step 3: Cross multiply
    504,399.96x = 696,072.90 × 274,959.12
  4. Step 4: Simplify right side
    504,399.96x = 191,391,592,039.85
  5. Step 5: Solve for x
    x = 191,391,592,039.85/504,399.96
  6. Step 6: Final answer
    x = 379,444.11

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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.