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Finding the Fourth Proportional to 574,715.76, 793,029.72 and 320,016.24

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Solution

The fourth proportional to 574,715.76, 793,029.72 and 320,016.24 is: 441,578.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,715.76 : 793,029.72 = 320,016.24 : x
  2. Step 2: Convert to fraction form
    574,715.76/793,029.72 = 320,016.24/x
  3. Step 3: Cross multiply
    574,715.76x = 793,029.72 × 320,016.24
  4. Step 4: Simplify right side
    574,715.76x = 253,782,389,202.65
  5. Step 5: Solve for x
    x = 253,782,389,202.65/574,715.76
  6. Step 6: Final answer
    x = 441,578.96

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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.