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Finding the Fourth Proportional to 464,575.52, 641,389.05 and 292,640.88

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Solution

The fourth proportional to 464,575.52, 641,389.05 and 292,640.88 is: 404,017.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,575.52 : 641,389.05 = 292,640.88 : x
  2. Step 2: Convert to fraction form
    464,575.52/641,389.05 = 292,640.88/x
  3. Step 3: Cross multiply
    464,575.52x = 641,389.05 × 292,640.88
  4. Step 4: Simplify right side
    464,575.52x = 187,696,656,014.36
  5. Step 5: Solve for x
    x = 187,696,656,014.36/464,575.52
  6. Step 6: Final answer
    x = 404,017.53

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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.