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Finding the Fourth Proportional to 567,801.21, 783,578.46 and 322,747.11

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Solution

The fourth proportional to 567,801.21, 783,578.46 and 322,747.11 is: 445,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,801.21 : 783,578.46 = 322,747.11 : x
  2. Step 2: Convert to fraction form
    567,801.21/783,578.46 = 322,747.11/x
  3. Step 3: Cross multiply
    567,801.21x = 783,578.46 × 322,747.11
  4. Step 4: Simplify right side
    567,801.21x = 252,897,683,423.25
  5. Step 5: Solve for x
    x = 252,897,683,423.25/567,801.21
  6. Step 6: Final answer
    x = 445,398.28

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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.