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Finding the Fourth Proportional to 1,736.99, 2,605.68 and 697.35

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Solution

The fourth proportional to 1,736.99, 2,605.68 and 697.35 is: 1,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.99 : 2,605.68 = 697.35 : x
  2. Step 2: Convert to fraction form
    1,736.99/2,605.68 = 697.35/x
  3. Step 3: Cross multiply
    1,736.99x = 2,605.68 × 697.35
  4. Step 4: Simplify right side
    1,736.99x = 1,817,070.95
  5. Step 5: Solve for x
    x = 1,817,070.95/1,736.99
  6. Step 6: Final answer
    x = 1,046.11

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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.