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Finding the Fourth Proportional to 1,468.50, 2,202.75 and 556.50

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Solution

The fourth proportional to 1,468.50, 2,202.75 and 556.50 is: 834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.50 : 2,202.75 = 556.50 : x
  2. Step 2: Convert to fraction form
    1,468.50/2,202.75 = 556.50/x
  3. Step 3: Cross multiply
    1,468.50x = 2,202.75 × 556.50
  4. Step 4: Simplify right side
    1,468.50x = 1,225,830.38
  5. Step 5: Solve for x
    x = 1,225,830.38/1,468.50
  6. Step 6: Final answer
    x = 834.75

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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.