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Finding the Fourth Proportional to 925.37, 1,277.09 and 576.11

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Solution

The fourth proportional to 925.37, 1,277.09 and 576.11 is: 795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.37 : 1,277.09 = 576.11 : x
  2. Step 2: Convert to fraction form
    925.37/1,277.09 = 576.11/x
  3. Step 3: Cross multiply
    925.37x = 1,277.09 × 576.11
  4. Step 4: Simplify right side
    925.37x = 735,741.44
  5. Step 5: Solve for x
    x = 735,741.44/925.37
  6. Step 6: Final answer
    x = 795.08

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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.