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Finding the Fourth Proportional to 1,156.22, 1,734.00 and 376.05

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Solution

The fourth proportional to 1,156.22, 1,734.00 and 376.05 is: 563.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.22 : 1,734.00 = 376.05 : x
  2. Step 2: Convert to fraction form
    1,156.22/1,734.00 = 376.05/x
  3. Step 3: Cross multiply
    1,156.22x = 1,734.00 × 376.05
  4. Step 4: Simplify right side
    1,156.22x = 652,077.91
  5. Step 5: Solve for x
    x = 652,077.91/1,156.22
  6. Step 6: Final answer
    x = 563.97

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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.