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Finding the Fourth Proportional to 1,558.02, 2,337.05 and 874.02

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Solution

The fourth proportional to 1,558.02, 2,337.05 and 874.02 is: 1,311.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.02 : 2,337.05 = 874.02 : x
  2. Step 2: Convert to fraction form
    1,558.02/2,337.05 = 874.02/x
  3. Step 3: Cross multiply
    1,558.02x = 2,337.05 × 874.02
  4. Step 4: Simplify right side
    1,558.02x = 2,042,628.44
  5. Step 5: Solve for x
    x = 2,042,628.44/1,558.02
  6. Step 6: Final answer
    x = 1,311.04

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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.