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Finding the Fourth Proportional to 1,331.10, 1,994.76 and 598.86

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Solution

The fourth proportional to 1,331.10, 1,994.76 and 598.86 is: 897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331.10 : 1,994.76 = 598.86 : x
  2. Step 2: Convert to fraction form
    1,331.10/1,994.76 = 598.86/x
  3. Step 3: Cross multiply
    1,331.10x = 1,994.76 × 598.86
  4. Step 4: Simplify right side
    1,331.10x = 1,194,581.97
  5. Step 5: Solve for x
    x = 1,194,581.97/1,331.10
  6. Step 6: Final answer
    x = 897.44

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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.