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Finding the Fourth Proportional to 504,797.06, 696,669.15 and 278,442.56

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Solution

The fourth proportional to 504,797.06, 696,669.15 and 278,442.56 is: 384,277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,797.06 : 696,669.15 = 278,442.56 : x
  2. Step 2: Convert to fraction form
    504,797.06/696,669.15 = 278,442.56/x
  3. Step 3: Cross multiply
    504,797.06x = 696,669.15 × 278,442.56
  4. Step 4: Simplify right side
    504,797.06x = 193,982,344,384.86
  5. Step 5: Solve for x
    x = 193,982,344,384.86/504,797.06
  6. Step 6: Final answer
    x = 384,277.88

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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.