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Finding the Fourth Proportional to 2,341.94, 3,512.79 and 698.42

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Solution

The fourth proportional to 2,341.94, 3,512.79 and 698.42 is: 1,047.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.94 : 3,512.79 = 698.42 : x
  2. Step 2: Convert to fraction form
    2,341.94/3,512.79 = 698.42/x
  3. Step 3: Cross multiply
    2,341.94x = 3,512.79 × 698.42
  4. Step 4: Simplify right side
    2,341.94x = 2,453,402.79
  5. Step 5: Solve for x
    x = 2,453,402.79/2,341.94
  6. Step 6: Final answer
    x = 1,047.59

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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.