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Finding the Fourth Proportional to 463,883.22, 639,779.26 and 326,516.87

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Solution

The fourth proportional to 463,883.22, 639,779.26 and 326,516.87 is: 450,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,883.22 : 639,779.26 = 326,516.87 : x
  2. Step 2: Convert to fraction form
    463,883.22/639,779.26 = 326,516.87/x
  3. Step 3: Cross multiply
    463,883.22x = 639,779.26 × 326,516.87
  4. Step 4: Simplify right side
    463,883.22x = 208,898,722,861.49
  5. Step 5: Solve for x
    x = 208,898,722,861.49/463,883.22
  6. Step 6: Final answer
    x = 450,326.10

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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.