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Finding the Fourth Proportional to 1,558.74, 2,337.96 and 404.49

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Solution

The fourth proportional to 1,558.74, 2,337.96 and 404.49 is: 606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.74 : 2,337.96 = 404.49 : x
  2. Step 2: Convert to fraction form
    1,558.74/2,337.96 = 404.49/x
  3. Step 3: Cross multiply
    1,558.74x = 2,337.96 × 404.49
  4. Step 4: Simplify right side
    1,558.74x = 945,691.72
  5. Step 5: Solve for x
    x = 945,691.72/1,558.74
  6. Step 6: Final answer
    x = 606.70

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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.