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Finding the Fourth Proportional to 795.48, 1,191.96 and 535.20

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Solution

The fourth proportional to 795.48, 1,191.96 and 535.20 is: 801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.48 : 1,191.96 = 535.20 : x
  2. Step 2: Convert to fraction form
    795.48/1,191.96 = 535.20/x
  3. Step 3: Cross multiply
    795.48x = 1,191.96 × 535.20
  4. Step 4: Simplify right side
    795.48x = 637,936.99
  5. Step 5: Solve for x
    x = 637,936.99/795.48
  6. Step 6: Final answer
    x = 801.95

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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.