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Finding the Fourth Proportional to 551,727.66, 761,732.73 and 361,063.38

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Solution

The fourth proportional to 551,727.66, 761,732.73 and 361,063.38 is: 498,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,727.66 : 761,732.73 = 361,063.38 : x
  2. Step 2: Convert to fraction form
    551,727.66/761,732.73 = 361,063.38/x
  3. Step 3: Cross multiply
    551,727.66x = 761,732.73 × 361,063.38
  4. Step 4: Simplify right side
    551,727.66x = 275,033,794,150.43
  5. Step 5: Solve for x
    x = 275,033,794,150.43/551,727.66
  6. Step 6: Final answer
    x = 498,495.57

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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.