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Finding the Fourth Proportional to 504,886.72, 696,745.62 and 275,449.15

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Solution

The fourth proportional to 504,886.72, 696,745.62 and 275,449.15 is: 380,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,886.72 : 696,745.62 = 275,449.15 : x
  2. Step 2: Convert to fraction form
    504,886.72/696,745.62 = 275,449.15/x
  3. Step 3: Cross multiply
    504,886.72x = 696,745.62 × 275,449.15
  4. Step 4: Simplify right side
    504,886.72x = 191,917,988,795.22
  5. Step 5: Solve for x
    x = 191,917,988,795.22/504,886.72
  6. Step 6: Final answer
    x = 380,120.89

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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.