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Finding the Fourth Proportional to 429,940.50, 593,313.57 and 238,949.79

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Solution

The fourth proportional to 429,940.50, 593,313.57 and 238,949.79 is: 329,748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,940.50 : 593,313.57 = 238,949.79 : x
  2. Step 2: Convert to fraction form
    429,940.50/593,313.57 = 238,949.79/x
  3. Step 3: Cross multiply
    429,940.50x = 593,313.57 × 238,949.79
  4. Step 4: Simplify right side
    429,940.50x = 141,772,152,955.65
  5. Step 5: Solve for x
    x = 141,772,152,955.65/429,940.50
  6. Step 6: Final answer
    x = 329,748.31

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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.