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Finding the Fourth Proportional to 335,780.55, 503,670.83 and 259,672.95

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Solution

The fourth proportional to 335,780.55, 503,670.83 and 259,672.95 is: 389,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,780.55 : 503,670.83 = 259,672.95 : x
  2. Step 2: Convert to fraction form
    335,780.55/503,670.83 = 259,672.95/x
  3. Step 3: Cross multiply
    335,780.55x = 503,670.83 × 259,672.95
  4. Step 4: Simplify right side
    335,780.55x = 130,789,688,956.68
  5. Step 5: Solve for x
    x = 130,789,688,956.68/335,780.55
  6. Step 6: Final answer
    x = 389,509.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.