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Finding the Fourth Proportional to 504,166.40, 755,536.80 and 279,625.76

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Solution

The fourth proportional to 504,166.40, 755,536.80 and 279,625.76 is: 419,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,166.40 : 755,536.80 = 279,625.76 : x
  2. Step 2: Convert to fraction form
    504,166.40/755,536.80 = 279,625.76/x
  3. Step 3: Cross multiply
    504,166.40x = 755,536.80 × 279,625.76
  4. Step 4: Simplify right side
    504,166.40x = 211,267,551,907.97
  5. Step 5: Solve for x
    x = 211,267,551,907.97/504,166.40
  6. Step 6: Final answer
    x = 419,043.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.