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Finding the Fourth Proportional to 950.16, 1,426.55 and 656.94

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Solution

The fourth proportional to 950.16, 1,426.55 and 656.94 is: 986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.16 : 1,426.55 = 656.94 : x
  2. Step 2: Convert to fraction form
    950.16/1,426.55 = 656.94/x
  3. Step 3: Cross multiply
    950.16x = 1,426.55 × 656.94
  4. Step 4: Simplify right side
    950.16x = 937,159.40
  5. Step 5: Solve for x
    x = 937,159.40/950.16
  6. Step 6: Final answer
    x = 986.32

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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.