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Finding the Fourth Proportional to 464,257.41, 640,954.67 and 303,381.69

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Solution

The fourth proportional to 464,257.41, 640,954.67 and 303,381.69 is: 418,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,257.41 : 640,954.67 = 303,381.69 : x
  2. Step 2: Convert to fraction form
    464,257.41/640,954.67 = 303,381.69/x
  3. Step 3: Cross multiply
    464,257.41x = 640,954.67 × 303,381.69
  4. Step 4: Simplify right side
    464,257.41x = 194,453,909,481.08
  5. Step 5: Solve for x
    x = 194,453,909,481.08/464,257.41
  6. Step 6: Final answer
    x = 418,849.34

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1.5x scale

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.