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Finding the Fourth Proportional to 1,337.38, 1,845.58 and 748.03

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Solution

The fourth proportional to 1,337.38, 1,845.58 and 748.03 is: 1,032.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.38 : 1,845.58 = 748.03 : x
  2. Step 2: Convert to fraction form
    1,337.38/1,845.58 = 748.03/x
  3. Step 3: Cross multiply
    1,337.38x = 1,845.58 × 748.03
  4. Step 4: Simplify right side
    1,337.38x = 1,380,549.21
  5. Step 5: Solve for x
    x = 1,380,549.21/1,337.38
  6. Step 6: Final answer
    x = 1,032.28

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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.