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Finding the Fourth Proportional to 1,194.00, 1,647.30 and 751.74

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Solution

The fourth proportional to 1,194.00, 1,647.30 and 751.74 is: 1,037.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.00 : 1,647.30 = 751.74 : x
  2. Step 2: Convert to fraction form
    1,194.00/1,647.30 = 751.74/x
  3. Step 3: Cross multiply
    1,194.00x = 1,647.30 × 751.74
  4. Step 4: Simplify right side
    1,194.00x = 1,238,333.07
  5. Step 5: Solve for x
    x = 1,238,333.07/1,194.00
  6. Step 6: Final answer
    x = 1,037.13

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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.