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Finding the Fourth Proportional to 1,475.66, 2,213.50 and 903.26

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Solution

The fourth proportional to 1,475.66, 2,213.50 and 903.26 is: 1,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.66 : 2,213.50 = 903.26 : x
  2. Step 2: Convert to fraction form
    1,475.66/2,213.50 = 903.26/x
  3. Step 3: Cross multiply
    1,475.66x = 2,213.50 × 903.26
  4. Step 4: Simplify right side
    1,475.66x = 1,999,366.01
  5. Step 5: Solve for x
    x = 1,999,366.01/1,475.66
  6. Step 6: Final answer
    x = 1,354.90

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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.