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Finding the Fourth Proportional to 464,576.52, 641,390.43 and 292,641.88

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Solution

The fourth proportional to 464,576.52, 641,390.43 and 292,641.88 is: 404,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,576.52 : 641,390.43 = 292,641.88 : x
  2. Step 2: Convert to fraction form
    464,576.52/641,390.43 = 292,641.88/x
  3. Step 3: Cross multiply
    464,576.52x = 641,390.43 × 292,641.88
  4. Step 4: Simplify right side
    464,576.52x = 187,697,701,249.21
  5. Step 5: Solve for x
    x = 187,697,701,249.21/464,576.52
  6. Step 6: Final answer
    x = 404,018.91

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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.