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Finding the Fourth Proportional to 551,198.16, 760,736.64 and 336,463.20

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Solution

The fourth proportional to 551,198.16, 760,736.64 and 336,463.20 is: 464,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,198.16 : 760,736.64 = 336,463.20 : x
  2. Step 2: Convert to fraction form
    551,198.16/760,736.64 = 336,463.20/x
  3. Step 3: Cross multiply
    551,198.16x = 760,736.64 × 336,463.20
  4. Step 4: Simplify right side
    551,198.16x = 255,959,884,251.65
  5. Step 5: Solve for x
    x = 255,959,884,251.65/551,198.16
  6. Step 6: Final answer
    x = 464,369.99

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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.