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Finding the Fourth Proportional to 475,963.12, 656,825.43 and 261,101.71

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Solution

The fourth proportional to 475,963.12, 656,825.43 and 261,101.71 is: 360,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,963.12 : 656,825.43 = 261,101.71 : x
  2. Step 2: Convert to fraction form
    475,963.12/656,825.43 = 261,101.71/x
  3. Step 3: Cross multiply
    475,963.12x = 656,825.43 × 261,101.71
  4. Step 4: Simplify right side
    475,963.12x = 171,498,242,944.49
  5. Step 5: Solve for x
    x = 171,498,242,944.49/475,963.12
  6. Step 6: Final answer
    x = 360,318.34

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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.