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Finding the Fourth Proportional to 574,407.89, 792,651.74 and 316,234.37

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Solution

The fourth proportional to 574,407.89, 792,651.74 and 316,234.37 is: 436,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,407.89 : 792,651.74 = 316,234.37 : x
  2. Step 2: Convert to fraction form
    574,407.89/792,651.74 = 316,234.37/x
  3. Step 3: Cross multiply
    574,407.89x = 792,651.74 × 316,234.37
  4. Step 4: Simplify right side
    574,407.89x = 250,663,723,628.30
  5. Step 5: Solve for x
    x = 250,663,723,628.30/574,407.89
  6. Step 6: Final answer
    x = 436,386.28

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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.