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Finding the Fourth Proportional to 572,897.67, 790,696.23 and 331,327.11

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Solution

The fourth proportional to 572,897.67, 790,696.23 and 331,327.11 is: 457,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,897.67 : 790,696.23 = 331,327.11 : x
  2. Step 2: Convert to fraction form
    572,897.67/790,696.23 = 331,327.11/x
  3. Step 3: Cross multiply
    572,897.67x = 790,696.23 × 331,327.11
  4. Step 4: Simplify right side
    572,897.67x = 261,979,096,773.80
  5. Step 5: Solve for x
    x = 261,979,096,773.80/572,897.67
  6. Step 6: Final answer
    x = 457,287.77

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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.