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Finding the Fourth Proportional to 1,474.79, 2,035.58 and 885.24

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Solution

The fourth proportional to 1,474.79, 2,035.58 and 885.24 is: 1,221.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.79 : 2,035.58 = 885.24 : x
  2. Step 2: Convert to fraction form
    1,474.79/2,035.58 = 885.24/x
  3. Step 3: Cross multiply
    1,474.79x = 2,035.58 × 885.24
  4. Step 4: Simplify right side
    1,474.79x = 1,801,972.41
  5. Step 5: Solve for x
    x = 1,801,972.41/1,474.79
  6. Step 6: Final answer
    x = 1,221.85

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1.5x scale

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.