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Finding the Fourth Proportional to 1,474.84, 2,035.50 and 885.64

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Solution

The fourth proportional to 1,474.84, 2,035.50 and 885.64 is: 1,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.84 : 2,035.50 = 885.64 : x
  2. Step 2: Convert to fraction form
    1,474.84/2,035.50 = 885.64/x
  3. Step 3: Cross multiply
    1,474.84x = 2,035.50 × 885.64
  4. Step 4: Simplify right side
    1,474.84x = 1,802,720.22
  5. Step 5: Solve for x
    x = 1,802,720.22/1,474.84
  6. Step 6: Final answer
    x = 1,222.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.