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Finding the Fourth Proportional to 1,474.11, 2,210.04 and 694.62

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Solution

The fourth proportional to 1,474.11, 2,210.04 and 694.62 is: 1,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.11 : 2,210.04 = 694.62 : x
  2. Step 2: Convert to fraction form
    1,474.11/2,210.04 = 694.62/x
  3. Step 3: Cross multiply
    1,474.11x = 2,210.04 × 694.62
  4. Step 4: Simplify right side
    1,474.11x = 1,535,137.98
  5. Step 5: Solve for x
    x = 1,535,137.98/1,474.11
  6. Step 6: Final answer
    x = 1,041.40

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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.