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Finding the Fourth Proportional to 464,326.37, 640,906.45 and 303,206.43

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Solution

The fourth proportional to 464,326.37, 640,906.45 and 303,206.43 is: 418,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,326.37 : 640,906.45 = 303,206.43 : x
  2. Step 2: Convert to fraction form
    464,326.37/640,906.45 = 303,206.43/x
  3. Step 3: Cross multiply
    464,326.37x = 640,906.45 × 303,206.43
  4. Step 4: Simplify right side
    464,326.37x = 194,326,955,910.46
  5. Step 5: Solve for x
    x = 194,326,955,910.46/464,326.37
  6. Step 6: Final answer
    x = 418,513.72

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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.