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Finding the Fourth Proportional to 504,827.46, 696,665.61 and 278,481.06

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Solution

The fourth proportional to 504,827.46, 696,665.61 and 278,481.06 is: 384,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,827.46 : 696,665.61 = 278,481.06 : x
  2. Step 2: Convert to fraction form
    504,827.46/696,665.61 = 278,481.06/x
  3. Step 3: Cross multiply
    504,827.46x = 696,665.61 × 278,481.06
  4. Step 4: Simplify right side
    504,827.46x = 194,008,177,538.35
  5. Step 5: Solve for x
    x = 194,008,177,538.35/504,827.46
  6. Step 6: Final answer
    x = 384,305.91

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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.