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Finding the Fourth Proportional to 1,471.32, 2,206.90 and 894.04

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Solution

The fourth proportional to 1,471.32, 2,206.90 and 894.04 is: 1,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,471.32 : 2,206.90 = 894.04 : x
  2. Step 2: Convert to fraction form
    1,471.32/2,206.90 = 894.04/x
  3. Step 3: Cross multiply
    1,471.32x = 2,206.90 × 894.04
  4. Step 4: Simplify right side
    1,471.32x = 1,973,056.88
  5. Step 5: Solve for x
    x = 1,973,056.88/1,471.32
  6. Step 6: Final answer
    x = 1,341.01

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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.