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Finding the Fourth Proportional to 574,606.56, 792,969.84 and 319,981.44

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Solution

The fourth proportional to 574,606.56, 792,969.84 and 319,981.44 is: 441,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,606.56 : 792,969.84 = 319,981.44 : x
  2. Step 2: Convert to fraction form
    574,606.56/792,969.84 = 319,981.44/x
  3. Step 3: Cross multiply
    574,606.56x = 792,969.84 × 319,981.44
  4. Step 4: Simplify right side
    574,606.56x = 253,735,631,279.77
  5. Step 5: Solve for x
    x = 253,735,631,279.77/574,606.56
  6. Step 6: Final answer
    x = 441,581.51

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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.