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Finding the Fourth Proportional to 516,578.44, 773,424.24 and 279,070.24

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Solution

The fourth proportional to 516,578.44, 773,424.24 and 279,070.24 is: 417,825.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,578.44 : 773,424.24 = 279,070.24 : x
  2. Step 2: Convert to fraction form
    516,578.44/773,424.24 = 279,070.24/x
  3. Step 3: Cross multiply
    516,578.44x = 773,424.24 × 279,070.24
  4. Step 4: Simplify right side
    516,578.44x = 215,839,688,278.62
  5. Step 5: Solve for x
    x = 215,839,688,278.62/516,578.44
  6. Step 6: Final answer
    x = 417,825.58

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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.