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Finding the Fourth Proportional to 952.76, 1,428.66 and 465.56

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Solution

The fourth proportional to 952.76, 1,428.66 and 465.56 is: 698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.76 : 1,428.66 = 465.56 : x
  2. Step 2: Convert to fraction form
    952.76/1,428.66 = 465.56/x
  3. Step 3: Cross multiply
    952.76x = 1,428.66 × 465.56
  4. Step 4: Simplify right side
    952.76x = 665,126.95
  5. Step 5: Solve for x
    x = 665,126.95/952.76
  6. Step 6: Final answer
    x = 698.11

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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.