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Finding the Fourth Proportional to 2,363.70, 3,545 and 697.38

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Solution

The fourth proportional to 2,363.70, 3,545 and 697.38 is: 1,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.70 : 3,545 = 697.38 : x
  2. Step 2: Convert to fraction form
    2,363.70/3,545 = 697.38/x
  3. Step 3: Cross multiply
    2,363.70x = 3,545 × 697.38
  4. Step 4: Simplify right side
    2,363.70x = 2,472,212.10
  5. Step 5: Solve for x
    x = 2,472,212.10/2,363.70
  6. Step 6: Final answer
    x = 1,045.91

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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.