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Finding the Fourth Proportional to 955.02, 1,317.92 and 562.04

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Solution

The fourth proportional to 955.02, 1,317.92 and 562.04 is: 775.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.02 : 1,317.92 = 562.04 : x
  2. Step 2: Convert to fraction form
    955.02/1,317.92 = 562.04/x
  3. Step 3: Cross multiply
    955.02x = 1,317.92 × 562.04
  4. Step 4: Simplify right side
    955.02x = 740,723.76
  5. Step 5: Solve for x
    x = 740,723.76/955.02
  6. Step 6: Final answer
    x = 775.61

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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.