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Finding the Fourth Proportional to 475,438.73, 656,008.48 and 281,761.07

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Solution

The fourth proportional to 475,438.73, 656,008.48 and 281,761.07 is: 388,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,438.73 : 656,008.48 = 281,761.07 : x
  2. Step 2: Convert to fraction form
    475,438.73/656,008.48 = 281,761.07/x
  3. Step 3: Cross multiply
    475,438.73x = 656,008.48 × 281,761.07
  4. Step 4: Simplify right side
    475,438.73x = 184,837,651,253.87
  5. Step 5: Solve for x
    x = 184,837,651,253.87/475,438.73
  6. Step 6: Final answer
    x = 388,772.81

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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.