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Finding the Fourth Proportional to 531, 795.60 and 367.92

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Solution

The fourth proportional to 531, 795.60 and 367.92 is: 551.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    531 : 795.60 = 367.92 : x
  2. Step 2: Convert to fraction form
    531/795.60 = 367.92/x
  3. Step 3: Cross multiply
    531x = 795.60 × 367.92
  4. Step 4: Simplify right side
    531x = 292,717.15
  5. Step 5: Solve for x
    x = 292,717.15/531
  6. Step 6: Final answer
    x = 551.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.