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Finding the Fourth Proportional to 977.89, 1,466.96 and 362.03

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Solution

The fourth proportional to 977.89, 1,466.96 and 362.03 is: 543.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    977.89 : 1,466.96 = 362.03 : x
  2. Step 2: Convert to fraction form
    977.89/1,466.96 = 362.03/x
  3. Step 3: Cross multiply
    977.89x = 1,466.96 × 362.03
  4. Step 4: Simplify right side
    977.89x = 531,077.10
  5. Step 5: Solve for x
    x = 531,077.10/977.89
  6. Step 6: Final answer
    x = 543.09

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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.