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Finding the Fourth Proportional to 576.36, 865.80 and 554.76

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Solution

The fourth proportional to 576.36, 865.80 and 554.76 is: 833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.36 : 865.80 = 554.76 : x
  2. Step 2: Convert to fraction form
    576.36/865.80 = 554.76/x
  3. Step 3: Cross multiply
    576.36x = 865.80 × 554.76
  4. Step 4: Simplify right side
    576.36x = 480,311.21
  5. Step 5: Solve for x
    x = 480,311.21/576.36
  6. Step 6: Final answer
    x = 833.35

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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.