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Finding the Fourth Proportional to 1,244.76, 1,866.72 and 464.60

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Solution

The fourth proportional to 1,244.76, 1,866.72 and 464.60 is: 696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.76 : 1,866.72 = 464.60 : x
  2. Step 2: Convert to fraction form
    1,244.76/1,866.72 = 464.60/x
  3. Step 3: Cross multiply
    1,244.76x = 1,866.72 × 464.60
  4. Step 4: Simplify right side
    1,244.76x = 867,278.11
  5. Step 5: Solve for x
    x = 867,278.11/1,244.76
  6. Step 6: Final answer
    x = 696.74

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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.