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Finding the Fourth Proportional to 795.22, 1,192.02 and 486.26

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Solution

The fourth proportional to 795.22, 1,192.02 and 486.26 is: 728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.22 : 1,192.02 = 486.26 : x
  2. Step 2: Convert to fraction form
    795.22/1,192.02 = 486.26/x
  3. Step 3: Cross multiply
    795.22x = 1,192.02 × 486.26
  4. Step 4: Simplify right side
    795.22x = 579,631.65
  5. Step 5: Solve for x
    x = 579,631.65/795.22
  6. Step 6: Final answer
    x = 728.89

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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.