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Finding the Fourth Proportional to 1,476.84, 2,214.84 and 436.73

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Solution

The fourth proportional to 1,476.84, 2,214.84 and 436.73 is: 654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.84 : 2,214.84 = 436.73 : x
  2. Step 2: Convert to fraction form
    1,476.84/2,214.84 = 436.73/x
  3. Step 3: Cross multiply
    1,476.84x = 2,214.84 × 436.73
  4. Step 4: Simplify right side
    1,476.84x = 967,287.07
  5. Step 5: Solve for x
    x = 967,287.07/1,476.84
  6. Step 6: Final answer
    x = 654.97

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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.