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Finding the Fourth Proportional to 1,473.94, 2,211.25 and 608.25

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Solution

The fourth proportional to 1,473.94, 2,211.25 and 608.25 is: 912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.94 : 2,211.25 = 608.25 : x
  2. Step 2: Convert to fraction form
    1,473.94/2,211.25 = 608.25/x
  3. Step 3: Cross multiply
    1,473.94x = 2,211.25 × 608.25
  4. Step 4: Simplify right side
    1,473.94x = 1,344,992.81
  5. Step 5: Solve for x
    x = 1,344,992.81/1,473.94
  6. Step 6: Final answer
    x = 912.52

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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.