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Finding the Fourth Proportional to 463,326, 639,385.56 and 262,122

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Solution

The fourth proportional to 463,326, 639,385.56 and 262,122 is: 361,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,326 : 639,385.56 = 262,122 : x
  2. Step 2: Convert to fraction form
    463,326/639,385.56 = 262,122/x
  3. Step 3: Cross multiply
    463,326x = 639,385.56 × 262,122
  4. Step 4: Simplify right side
    463,326x = 167,597,021,758.32
  5. Step 5: Solve for x
    x = 167,597,021,758.32/463,326
  6. Step 6: Final answer
    x = 361,725.92

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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.