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Finding the Fourth Proportional to 1,154.46, 1,592.90 and 734.66

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Solution

The fourth proportional to 1,154.46, 1,592.90 and 734.66 is: 1,013.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.46 : 1,592.90 = 734.66 : x
  2. Step 2: Convert to fraction form
    1,154.46/1,592.90 = 734.66/x
  3. Step 3: Cross multiply
    1,154.46x = 1,592.90 × 734.66
  4. Step 4: Simplify right side
    1,154.46x = 1,170,245.73
  5. Step 5: Solve for x
    x = 1,170,245.73/1,154.46
  6. Step 6: Final answer
    x = 1,013.67

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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.