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Finding the Fourth Proportional to 551,178.41, 760,709.78 and 336,443.25

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Solution

The fourth proportional to 551,178.41, 760,709.78 and 336,443.25 is: 464,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,178.41 : 760,709.78 = 336,443.25 : x
  2. Step 2: Convert to fraction form
    551,178.41/760,709.78 = 336,443.25/x
  3. Step 3: Cross multiply
    551,178.41x = 760,709.78 × 336,443.25
  4. Step 4: Simplify right side
    551,178.41x = 255,935,673,122.09
  5. Step 5: Solve for x
    x = 255,935,673,122.09/551,178.41
  6. Step 6: Final answer
    x = 464,342.71

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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.