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Finding the Fourth Proportional to 574,271.98, 792,481.34 and 316,146.85

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Solution

The fourth proportional to 574,271.98, 792,481.34 and 316,146.85 is: 436,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,271.98 : 792,481.34 = 316,146.85 : x
  2. Step 2: Convert to fraction form
    574,271.98/792,481.34 = 316,146.85/x
  3. Step 3: Cross multiply
    574,271.98x = 792,481.34 × 316,146.85
  4. Step 4: Simplify right side
    574,271.98x = 250,540,479,324.78
  5. Step 5: Solve for x
    x = 250,540,479,324.78/574,271.98
  6. Step 6: Final answer
    x = 436,274.95

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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.