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Finding the Fourth Proportional to 1,473.12, 2,206.44 and 702

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Solution

The fourth proportional to 1,473.12, 2,206.44 and 702 is: 1,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.12 : 2,206.44 = 702 : x
  2. Step 2: Convert to fraction form
    1,473.12/2,206.44 = 702/x
  3. Step 3: Cross multiply
    1,473.12x = 2,206.44 × 702
  4. Step 4: Simplify right side
    1,473.12x = 1,548,920.88
  5. Step 5: Solve for x
    x = 1,548,920.88/1,473.12
  6. Step 6: Final answer
    x = 1,051.46

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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.