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Finding the Fourth Proportional to 1,884.76, 2,600.88 and 1,098.79

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Solution

The fourth proportional to 1,884.76, 2,600.88 and 1,098.79 is: 1,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884.76 : 2,600.88 = 1,098.79 : x
  2. Step 2: Convert to fraction form
    1,884.76/2,600.88 = 1,098.79/x
  3. Step 3: Cross multiply
    1,884.76x = 2,600.88 × 1,098.79
  4. Step 4: Simplify right side
    1,884.76x = 2,857,820.94
  5. Step 5: Solve for x
    x = 2,857,820.94/1,884.76
  6. Step 6: Final answer
    x = 1,516.28

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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.