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Finding the Fourth Proportional to 453,083.10, 679,843.35 and 319,676.10

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Solution

The fourth proportional to 453,083.10, 679,843.35 and 319,676.10 is: 479,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,083.10 : 679,843.35 = 319,676.10 : x
  2. Step 2: Convert to fraction form
    453,083.10/679,843.35 = 319,676.10/x
  3. Step 3: Cross multiply
    453,083.10x = 679,843.35 × 319,676.10
  4. Step 4: Simplify right side
    453,083.10x = 217,329,670,738.94
  5. Step 5: Solve for x
    x = 217,329,670,738.94/453,083.10
  6. Step 6: Final answer
    x = 479,668.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.