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Finding the Fourth Proportional to 1,740.88, 2,402.63 and 994.67

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Solution

The fourth proportional to 1,740.88, 2,402.63 and 994.67 is: 1,372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.88 : 2,402.63 = 994.67 : x
  2. Step 2: Convert to fraction form
    1,740.88/2,402.63 = 994.67/x
  3. Step 3: Cross multiply
    1,740.88x = 2,402.63 × 994.67
  4. Step 4: Simplify right side
    1,740.88x = 2,389,819.74
  5. Step 5: Solve for x
    x = 2,389,819.74/1,740.88
  6. Step 6: Final answer
    x = 1,372.76

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1.5x scale

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.