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Finding the Fourth Proportional to 475,860.98, 656,712.20 and 261,021.03

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Solution

The fourth proportional to 475,860.98, 656,712.20 and 261,021.03 is: 360,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,860.98 : 656,712.20 = 261,021.03 : x
  2. Step 2: Convert to fraction form
    475,860.98/656,712.20 = 261,021.03/x
  3. Step 3: Cross multiply
    475,860.98x = 656,712.20 × 261,021.03
  4. Step 4: Simplify right side
    475,860.98x = 171,415,695,510.12
  5. Step 5: Solve for x
    x = 171,415,695,510.12/475,860.98
  6. Step 6: Final answer
    x = 360,222.22

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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.