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Finding the Fourth Proportional to 1,598.64, 2,391.36 and 1,274.64

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Solution

The fourth proportional to 1,598.64, 2,391.36 and 1,274.64 is: 1,906.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,598.64 : 2,391.36 = 1,274.64 : x
  2. Step 2: Convert to fraction form
    1,598.64/2,391.36 = 1,274.64/x
  3. Step 3: Cross multiply
    1,598.64x = 2,391.36 × 1,274.64
  4. Step 4: Simplify right side
    1,598.64x = 3,048,123.11
  5. Step 5: Solve for x
    x = 3,048,123.11/1,598.64
  6. Step 6: Final answer
    x = 1,906.70

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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.