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Finding the Fourth Proportional to 453,673.44, 625,021.20 and 326,128.32

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Solution

The fourth proportional to 453,673.44, 625,021.20 and 326,128.32 is: 449,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,673.44 : 625,021.20 = 326,128.32 : x
  2. Step 2: Convert to fraction form
    453,673.44/625,021.20 = 326,128.32/x
  3. Step 3: Cross multiply
    453,673.44x = 625,021.20 × 326,128.32
  4. Step 4: Simplify right side
    453,673.44x = 203,837,113,920.38
  5. Step 5: Solve for x
    x = 203,837,113,920.38/453,673.44
  6. Step 6: Final answer
    x = 449,303.61

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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.