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Finding the Fourth Proportional to 1,460.48, 2,190.67 and 994.94

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Solution

The fourth proportional to 1,460.48, 2,190.67 and 994.94 is: 1,492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.48 : 2,190.67 = 994.94 : x
  2. Step 2: Convert to fraction form
    1,460.48/2,190.67 = 994.94/x
  3. Step 3: Cross multiply
    1,460.48x = 2,190.67 × 994.94
  4. Step 4: Simplify right side
    1,460.48x = 2,179,571.77
  5. Step 5: Solve for x
    x = 2,179,571.77/1,460.48
  6. Step 6: Final answer
    x = 1,492.36

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1.5x scale

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.