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Finding the Fourth Proportional to 2,278.93, 3,416.53 and 892.01

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Solution

The fourth proportional to 2,278.93, 3,416.53 and 892.01 is: 1,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.93 : 3,416.53 = 892.01 : x
  2. Step 2: Convert to fraction form
    2,278.93/3,416.53 = 892.01/x
  3. Step 3: Cross multiply
    2,278.93x = 3,416.53 × 892.01
  4. Step 4: Simplify right side
    2,278.93x = 3,047,578.93
  5. Step 5: Solve for x
    x = 3,047,578.93/2,278.93
  6. Step 6: Final answer
    x = 1,337.29

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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.