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Finding the Fourth Proportional to 773.27, 1,159.93 and 465.38

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Solution

The fourth proportional to 773.27, 1,159.93 and 465.38 is: 698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.27 : 1,159.93 = 465.38 : x
  2. Step 2: Convert to fraction form
    773.27/1,159.93 = 465.38/x
  3. Step 3: Cross multiply
    773.27x = 1,159.93 × 465.38
  4. Step 4: Simplify right side
    773.27x = 539,808.80
  5. Step 5: Solve for x
    x = 539,808.80/773.27
  6. Step 6: Final answer
    x = 698.08

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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.