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Finding the Fourth Proportional to 474,380.70, 654,642.99 and 259,516.86

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Solution

The fourth proportional to 474,380.70, 654,642.99 and 259,516.86 is: 358,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,380.70 : 654,642.99 = 259,516.86 : x
  2. Step 2: Convert to fraction form
    474,380.70/654,642.99 = 259,516.86/x
  3. Step 3: Cross multiply
    474,380.70x = 654,642.99 × 259,516.86
  4. Step 4: Simplify right side
    474,380.70x = 169,890,893,185.81
  5. Step 5: Solve for x
    x = 169,890,893,185.81/474,380.70
  6. Step 6: Final answer
    x = 358,131.97

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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.