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Finding the Fourth Proportional to 475,860.29, 656,729.33 and 261,042.21

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Solution

The fourth proportional to 475,860.29, 656,729.33 and 261,042.21 is: 360,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,860.29 : 656,729.33 = 261,042.21 : x
  2. Step 2: Convert to fraction form
    475,860.29/656,729.33 = 261,042.21/x
  3. Step 3: Cross multiply
    475,860.29x = 656,729.33 × 261,042.21
  4. Step 4: Simplify right side
    475,860.29x = 171,434,074,369.81
  5. Step 5: Solve for x
    x = 171,434,074,369.81/475,860.29
  6. Step 6: Final answer
    x = 360,261.36

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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.