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Finding the Fourth Proportional to 1,492.46, 2,059.26 and 902.98

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Solution

The fourth proportional to 1,492.46, 2,059.26 and 902.98 is: 1,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.46 : 2,059.26 = 902.98 : x
  2. Step 2: Convert to fraction form
    1,492.46/2,059.26 = 902.98/x
  3. Step 3: Cross multiply
    1,492.46x = 2,059.26 × 902.98
  4. Step 4: Simplify right side
    1,492.46x = 1,859,470.59
  5. Step 5: Solve for x
    x = 1,859,470.59/1,492.46
  6. Step 6: Final answer
    x = 1,245.91

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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.