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Finding the Fourth Proportional to 776.16, 1,164.63 and 365.25

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Solution

The fourth proportional to 776.16, 1,164.63 and 365.25 is: 548.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.16 : 1,164.63 = 365.25 : x
  2. Step 2: Convert to fraction form
    776.16/1,164.63 = 365.25/x
  3. Step 3: Cross multiply
    776.16x = 1,164.63 × 365.25
  4. Step 4: Simplify right side
    776.16x = 425,381.11
  5. Step 5: Solve for x
    x = 425,381.11/776.16
  6. Step 6: Final answer
    x = 548.06

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