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Finding the Fourth Proportional to 963.16, 1,444.08 and 346.54

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Solution

The fourth proportional to 963.16, 1,444.08 and 346.54 is: 519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.16 : 1,444.08 = 346.54 : x
  2. Step 2: Convert to fraction form
    963.16/1,444.08 = 346.54/x
  3. Step 3: Cross multiply
    963.16x = 1,444.08 × 346.54
  4. Step 4: Simplify right side
    963.16x = 500,431.48
  5. Step 5: Solve for x
    x = 500,431.48/963.16
  6. Step 6: Final answer
    x = 519.57

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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.