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Finding the Fourth Proportional to 475,859.58, 656,687.18 and 261,001.42

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Solution

The fourth proportional to 475,859.58, 656,687.18 and 261,001.42 is: 360,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,859.58 : 656,687.18 = 261,001.42 : x
  2. Step 2: Convert to fraction form
    475,859.58/656,687.18 = 261,001.42/x
  3. Step 3: Cross multiply
    475,859.58x = 656,687.18 × 261,001.42
  4. Step 4: Simplify right side
    475,859.58x = 171,396,286,475.80
  5. Step 5: Solve for x
    x = 171,396,286,475.80/475,859.58
  6. Step 6: Final answer
    x = 360,182.49

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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.