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Finding the Fourth Proportional to 1,476.93, 2,215.92 and 736.47

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Solution

The fourth proportional to 1,476.93, 2,215.92 and 736.47 is: 1,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.93 : 2,215.92 = 736.47 : x
  2. Step 2: Convert to fraction form
    1,476.93/2,215.92 = 736.47/x
  3. Step 3: Cross multiply
    1,476.93x = 2,215.92 × 736.47
  4. Step 4: Simplify right side
    1,476.93x = 1,631,957.22
  5. Step 5: Solve for x
    x = 1,631,957.22/1,476.93
  6. Step 6: Final answer
    x = 1,104.97

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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.